Thanks Manu. @all: I observed other strange stuff that I don't understand at the moment:
I installed rc for 1.5 from pip to check that I'm not doing something wrong when building. And I found out that the usage of CPU is quite subpar ( https://imgur.com/fRmbQNc ) compared to a version compiled from source. The pip package is using 4-5 cores of the 32. When I compile from source I get good core utilization. ( https://imgur.com/e8BB425 ). I verified this also on a c5d.18xlarge and a 32 core AMD bare metal machine. Seems to me also that the version from pip is using gomp instead of llvm's omp. I'm not sure why. pip install mxnet==1.5.0b20190627 /home/piotr/py3_1.5rc/lib/python3.6/site-packages/mxnet piotr@panther:0: ~/p/l/p/s/mxnet> ldd libmxnet.so | grep omp libgomp.so.1 => /usr/lib/x86_64-linux-gnu/libgomp.so.1 (0x00007f99d1832000) I tried cifar10 on a bare metal 32 core AMD Zen machine and is extremely slow, doesn't seem to make much progress, when compared to a c5d.18xlarge, I couldn't even do 1 epoch, tried with and without MKL without much success. Will continue digging into this when possible. Pedro. On Thu, Jun 27, 2019 at 9:41 PM Manu Seth <manuseth1...@gmail.com> wrote: > > Hi all, > > I ran the same cifar10.py script as Pedro, but for 20 epochs. Considering > the first 10 epochs for warm-up, I averaged time per epoch for the last 10 > epochs. > > With MXNet 1.4.1 average time is 164.23 s > With MXNet 1.5.0 average time is 174.59 s (~6.3% regression) > > > For a second data point, I ran Gluon speed test benchmark script - > https://github.com/apache/incubator-mxnet/blob/master/benchmark/python/gluon/benchmark_gluon.py > using the following command: > python3 benchmark_gluon.py --model 'resnet152_v2' --batch-size 128 > --num-batches 200 --type 'training' > > I got the following speeds: > With MXNet 1.4.1, average speed is 25.677534 img/s > With MXNet 1.5.0, average speed is 25.082130 img/s (~2.3% regression) > > Note: > For 1.4.1 version, I used pip install mxnet-mkl==1.4.1 > For 1.5.0 version, I used pip install mxnet-mkl==1.5.0b20190619 which > corresponds to commit# ccbbf6b4b76ea536a6583c99497c83b65a20817b which is > behind 1.5.x branch by 4 commits > > > Best, > Manu > > > On 6/27/19, 3:37 PM, "sandeep krishnamurthy" <sandeep.krishn...@gmail.com> > wrote: > > Hello Ciyong/Pedro, > > Ran operator benchmarks on 1.4.1 and 1.5.0.rc2. (Not complete, doesn’t > cover all MXNet operators, not presented in best possible way, still > WIP) > > https://gist.github.com/sandeep-krishnamurthy/e0a2be893c8c4d484390c9c8813bdf50 > > Following operators looks slower in 1.5 compared to 1.4.1: > - BatchNorm > - Pooling > - FullyConnected > - batch_dot > - Dot > - broadcast_mul > - log_softmax > and few other operators > > Also, several operators runs a lot faster on 1.5 compared to 1.4.1. For > example - Convolution, flatten, elementwise operators etc. So I see that > likely few operators have regressed noticeably, however, due to other > operator performance improvements, the end effect is not that > significant > hiding a lot of regression. We need more detailed analysis per operator > performance. We will not be able to do this for current release, we > should > have a more concrete way to determining such performance regression > before > next release. > > Setup: > 1.5 => Build from source (head of 1.5.rc2 tag), built with MKLDNN > 1.4.1 => PyPi mxnet-mkl==1.4.1 > Machine: C5.18X > No explicit environment variable were set > Operator benchmark code - > https://github.com/apache/incubator-mxnet/tree/master/benchmark/opperf > > Best, > Sandeep > > > On Thu, Jun 27, 2019 at 10:42 AM Pedro Larroy < > pedro.larroy.li...@gmail.com> > wrote: > > > I will try to run a few benchmarks in a bare metal instance tonight to > > remove virtualization variance for the measurements and provide some > > numbers. > > > > Please propose a set of models / examples that would be desirable to > > run before the release and provide a link to an easy to run script > > with instructions so we can validate the release better. > > > > Thank you. > > > > On Thu, Jun 27, 2019 at 10:01 AM Lai Wei <roywei...@gmail.com> wrote: > > > > > > Dear @dev, > > > > > > I m cancelling the vote for cached op fix: > > > > > > https://github.com/apache/incubator-mxnet/pull/15298 > > > > > > As for the possible cpu training regression, it looks like not a > blocker > > > for now. > > > > > > I will start a new rc2 vote, please help to validate. > > > > > > Thanks! > > > > > > > > > On Thu, Jun 27, 2019 at 10:06 PM Chen, Ciyong <ciyong.c...@intel.com > > > > wrote: > > > > > > > Hi Pedro, > > > > > > > > I was able to reproduced the similar result (v1.5 is ~%5.6 slower > than > > > > v1.4, I was using 18 cores for computing) with your script on > > C5.18xlarge. > > > > But need to bind the cores with below command when running the > script, > > > > (without setting the env variables, I got a close time (<1%) with > v1.5 > > and > > > > v1.4) > > > > export > KMP_AFFINITY=granularity=fine,noduplicates,compact,1,0 > > > > export OMP_NUM_THREADS=18 > > > > > > > > Did you set any env variables during running? > > > > > > > > The performance result I got as below: > > > > 1) 1.4.1.rc0 (1a7199691f5cbc6012bb53eecbf884bed5ae6590) > > > > real 12m10.856s > > > > user 234m49.576s > > > > sys 4m38.044s > > > > > > > > 2) 1.5.0.rc1 (4d9667121ae6fb643f2a02ab15e25231ed756cde) > > > > real 12m52.140s > > > > user 246m30.740s > > > > sys 5m8.188s > > > > > > > > As I looked at the profiling data, most of the ops have same perf > > between > > > > v1.4 and v1.5. But some ops like " _backward_BatchNorm" and > "Pooling" > > is > > > > ~1.37x slower on v1.5 compared with v1.4. > > > > Will do further analysis on these ops. > > > > > > > > Here's the hardware/OS info from my side: > > > > ----------Python Info---------- > > > > Version : 3.6.8 > > > > Compiler : GCC 7.3.0 > > > > Build : ('default', 'Dec 30 2018 01:22:34') > > > > Arch : ('64bit', '') > > > > ------------Pip Info----------- > > > > Version : 19.0.3 > > > > Directory : > > > > > /home/ubuntu/anaconda3/envs/perf-mxnet/lib/python3.6/site-packages/pip > > > > ----------MXNet Info----------- > > > > Version : 1.5.0 > > > > Directory : /home/ubuntu/ws/incubator-mxnet/python/mxnet > > > > Hashtag not found. Not installed from pre-built package. > > > > ----------System Info---------- > > > > Platform : Linux-4.4.0-1085-aws-x86_64-with-debian-stretch-sid > > > > system : Linux > > > > node : ip-172-31-32-129 > > > > release : 4.4.0-1085-aws > > > > version : #96-Ubuntu SMP Tue Jun 11 09:08:32 UTC 2019 > > > > ----------Hardware Info---------- > > > > machine : x86_64 > > > > processor : x86_64 > > > > Architecture: x86_64 > > > > CPU op-mode(s): 32-bit, 64-bit > > > > Byte Order: Little Endian > > > > CPU(s): 72 > > > > On-line CPU(s) list: 0-71 > > > > Thread(s) per core: 2 > > > > Core(s) per socket: 18 > > > > Socket(s): 2 > > > > NUMA node(s): 2 > > > > Vendor ID: GenuineIntel > > > > CPU family: 6 > > > > Model: 85 > > > > Model name: Intel(R) Xeon(R) Platinum 8124M CPU @ > 3.00GHz > > > > Stepping: 3 > > > > CPU MHz: 3000.000 > > > > BogoMIPS: 6000.00 > > > > Hypervisor vendor: KVM > > > > Virtualization type: full > > > > L1d cache: 32K > > > > L1i cache: 32K > > > > L2 cache: 1024K > > > > L3 cache: 25344K > > > > NUMA node0 CPU(s): 0-17,36-53 > > > > NUMA node1 CPU(s): 18-35,54-71 > > > > Flags: fpu vme de pse tsc msr pae mce cx8 apic > sep mtrr > > > > pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx > > pdpe1gb > > > > rdtscp lm constant_tsc arch_perfmon rep_good nopl xtopology > nonstop_tsc > > > > aperfmperf tsc_known_freq pni pclmulqdq monitor ssse3 fma cx16 > pcid > > sse4_1 > > > > sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c > rdrand > > > > hypervisor lahf_lm abm 3dnowprefetch invpcid_single kaiser > fsgsbase > > > > tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f > rdseed > > adx > > > > smap clflushopt clwb avx512cd xsaveopt xsavec xgetbv1 ida arat pku > > > > ----------Network Test---------- > > > > > > > > > > > > -Ciyong > > > > > > > > > > > > -----Original Message----- > > > > From: Zhao, Patric [mailto:patric.z...@intel.com] > > > > Sent: Thursday, June 27, 2019 9:55 AM > > > > To: dev@mxnet.incubator.apache.org > > > > Cc: d...@mxnet.apache.org > > > > Subject: RE: [VOTE] Release Apache MXNet (incubating) version > 1.5.0.rc1 > > > > > > > > Could we run more epochs to see the performance difference or > profiling > > > > the difference between good and bad run? > > > > > > > > > -----Original Message----- > > > > > From: Pedro Larroy [mailto:pedro.larroy.li...@gmail.com] > > > > > Sent: Thursday, June 27, 2019 9:35 AM > > > > > To: dev@mxnet.incubator.apache.org > > > > > Cc: d...@mxnet.apache.org > > > > > Subject: Re: [VOTE] Release Apache MXNet (incubating) version > > > > > 1.5.0.rc1 > > > > > > > > > > I run again and the gap is again bigger, I guess we need to > average > > > > > out the times across several runs: > > > > > > > > > > piotr@ip-172-31-63-171:0:~/deeplearning-benchmark/dawnbench > > > > > (master)+$ time ~/mxnet_1.4/py3_venv/bin/python cifar10.py > --epochs 5 > > > > > && time ~/mxnet_1.5/py3_venv/bin/python cifar10.py --epochs 5 > > > > > [23:17:09] ../src/io/iter_image_recordio_2.cc:172: > > > > > ImageRecordIOParser2: > > > > > /home/piotr/deeplearning-benchmark/data/cifar/train.rec, use 4 > > threads > > > > > for decoding.. > > > > > [23:17:09] ../src/io/iter_image_recordio_2.cc:230: Load mean > image > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > [23:17:09] ../src/io/iter_image_recordio_2.cc:248: Load mean > image > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > completed > > > > > [23:17:09] ../src/io/iter_image_recordio_2.cc:172: > > > > > ImageRecordIOParser2: > > > > > /home/piotr/deeplearning-benchmark/data/cifar/test.rec, use 4 > threads > > > > > for decoding.. > > > > > [23:17:09] ../src/io/iter_image_recordio_2.cc:230: Load mean > image > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > [23:17:09] ../src/io/iter_image_recordio_2.cc:248: Load mean > image > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > completed > > > > > lr_schedule: {0: 0.05, 82: 0.005000000000000001, 123: 0.0005, > 300: > > > > > 0.0001} Epoch 0, Changed learning rate to 0.05 [23:17:09] > > > > > ../src/operator/nn/mkldnn/mkldnn_base.cc:74: Allocate > > > > > 147456 bytes with malloc directly > > > > > [23:17:09] ../src/operator/nn/mkldnn/mkldnn_base.cc:74: Allocate > > > > > 589824 bytes with malloc directly > > > > > [23:17:09] ../src/operator/nn/mkldnn/mkldnn_base.cc:74: Allocate > > > > > 2359296 bytes with malloc directly > > > > > [23:17:09] ../src/operator/nn/mkldnn/mkldnn_base.cc:74: Allocate > > > > > 9437184 bytes with malloc directly > > > > > Epoch 0, Batch 199, Speed=384.149839 > > > > > Epoch 0, Duration=140.919567 > > > > > Epoch 0, Training accuracy=0.115169 > > > > > Epoch 0, Validation accuracy=0.141317 > > > > > Epoch 1, Batch 199, Speed=433.380512 > > > > > Epoch 1, Duration=119.553233 > > > > > Epoch 1, Training accuracy=0.170956 > > > > > Epoch 1, Validation accuracy=0.216146 > > > > > Epoch 2, Batch 199, Speed=434.864699 > > > > > Epoch 2, Duration=123.278490 > > > > > Epoch 2, Training accuracy=0.209455 > > > > > Epoch 2, Validation accuracy=0.247296 > > > > > Epoch 3, Batch 199, Speed=433.401854 > > > > > Epoch 3, Duration=118.327797 > > > > > Epoch 3, Training accuracy=0.248701 > > > > > Epoch 3, Validation accuracy=0.302083 > > > > > Epoch 4, Batch 199, Speed=419.713707 > > > > > Epoch 4, Duration=126.468409 > > > > > Epoch 4, Training accuracy=0.260949 > > > > > Epoch 4, Validation accuracy=0.269030 > > > > > > > > > > real 10m55.796s > > > > > user 399m33.567s > > > > > sys 13m55.904s > > > > > [23:28:04] ../src/io/iter_image_recordio_2.cc:172: > > > > > ImageRecordIOParser2: > > > > > /home/piotr/deeplearning-benchmark/data/cifar/train.rec, use 4 > > threads > > > > > for decoding.. > > > > > [23:28:04] ../src/io/iter_image_recordio_2.cc:230: Load mean > image > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > [23:28:04] ../src/io/iter_image_recordio_2.cc:248: Load mean > image > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > completed > > > > > [23:28:04] ../src/io/iter_image_recordio_2.cc:172: > > > > > ImageRecordIOParser2: > > > > > /home/piotr/deeplearning-benchmark/data/cifar/test.rec, use 4 > threads > > > > > for decoding.. > > > > > [23:28:04] ../src/io/iter_image_recordio_2.cc:230: Load mean > image > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > [23:28:04] ../src/io/iter_image_recordio_2.cc:248: Load mean > image > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > completed > > > > > lr_schedule: {0: 0.05, 82: 0.005000000000000001, 123: 0.0005, > 300: > > > > > 0.0001} Epoch 0, Changed learning rate to 0.05 Epoch 0, Batch > 199, > > > > > Speed=419.039188 Epoch 0, Duration=143.934903 Epoch 0, Training > > > > > accuracy=0.122542 Epoch 0, Validation accuracy=0.164359 Epoch 1, > > Batch > > > > > 199, Speed=445.257048 Epoch 1, Duration=135.248399 Epoch 1, > Training > > > > > accuracy=0.178828 Epoch 1, Validation accuracy=0.199419 Epoch 2, > > Batch > > > > > 199, Speed=447.115215 Epoch 2, Duration=132.003770 Epoch 2, > Training > > > > > accuracy=0.217808 Epoch 2, Validation accuracy=0.233073 Epoch 3, > > Batch > > > > > 199, Speed=441.079477 Epoch 3, Duration=126.543316 Epoch 3, > Training > > > > > accuracy=0.248102 Epoch 3, Validation accuracy=0.293870 Epoch 4, > > Batch > > > > > 199, Speed=449.329787 Epoch 4, Duration=138.398325 Epoch 4, > Training > > > > > accuracy=0.270021 Epoch 4, Validation accuracy=0.311498 > > > > > > > > > > real 11m45.329s > > > > > user 426m13.908s > > > > > sys 16m45.093s > > > > > > > > > > On Wed, Jun 26, 2019 at 4:18 PM Pedro Larroy > > > > > <pedro.larroy.li...@gmail.com> wrote: > > > > > > > > > > > > The difference looks smaller now, more like your numbers. I > wonder > > > > > > if something happened during the previous benchmark like a > system > > > > > > update... > > > > > > > > > > > > > > > > > > piotr@ip-172-31-63-171:0:~/deeplearning-benchmark/dawnbench > > > > > (master)+$ > > > > > > time ~/mxnet_1.4/py3_venv/bin/python cifar10.py --epochs 5 && > time > > > > > > ~/mxnet_1.5/py3_venv/bin/python cifar10.py --epochs 5 > [22:49:41] > > > > > > ../src/io/iter_image_recordio_2.cc:172: > > > > > > ImageRecordIOParser2: > > > > > > /home/piotr/deeplearning-benchmark/data/cifar/train.rec, use 4 > > > > > > threads for decoding.. > > > > > > [22:49:41] ../src/io/iter_image_recordio_2.cc:230: Load mean > image > > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > > [22:49:41] ../src/io/iter_image_recordio_2.cc:248: Load mean > image > > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > completed > > > > > > [22:49:41] ../src/io/iter_image_recordio_2.cc:172: > > > > > > ImageRecordIOParser2: > > > > > > /home/piotr/deeplearning-benchmark/data/cifar/test.rec, use 4 > > > > > > threads for decoding.. > > > > > > [22:49:41] ../src/io/iter_image_recordio_2.cc:230: Load mean > image > > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > > [22:49:41] ../src/io/iter_image_recordio_2.cc:248: Load mean > image > > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > completed > > > > > > lr_schedule: {0: 0.05, 82: 0.005000000000000001, 123: 0.0005, > 300: > > > > > > 0.0001} Epoch 0, Changed learning rate to 0.05 [22:49:42] > > > > > > ../src/operator/nn/mkldnn/mkldnn_base.cc:74: Allocate > > > > > > 147456 bytes with malloc directly > > > > > > [22:49:42] ../src/operator/nn/mkldnn/mkldnn_base.cc:74: > Allocate > > > > > > 589824 bytes with malloc directly > > > > > > [22:49:42] ../src/operator/nn/mkldnn/mkldnn_base.cc:74: > Allocate > > > > > > 2359296 bytes with malloc directly > > > > > > [22:49:42] ../src/operator/nn/mkldnn/mkldnn_base.cc:74: > Allocate > > > > > > 9437184 bytes with malloc directly > > > > > > Epoch 0, Batch 199, Speed=426.182733 Epoch 0, > Duration=134.868458 > > > > > > Epoch 0, Training accuracy=0.127238 Epoch 0, Validation > > > > > > accuracy=0.206388 Epoch 1, Batch 199, Speed=313.127156 Epoch > 1, > > > > > > Duration=128.041775 Epoch 1, Training accuracy=0.182065 Epoch > 1, > > > > > > Validation accuracy=0.202524 Epoch 2, Batch 199, > Speed=410.931187 > > > > > > Epoch 2, Duration=124.920588 Epoch 2, Training > accuracy=0.202584 > > > > > > Epoch 2, Validation accuracy=0.245693 Epoch 3, Batch 199, > > > > > > Speed=419.119335 Epoch 3, Duration=120.948349 Epoch 3, > Training > > > > > > accuracy=0.235854 Epoch 3, Validation accuracy=0.291066 Epoch > 4, > > > > > > Batch 199, Speed=430.473733 Epoch 4, Duration=130.181724 > Epoch 4, > > > > > > Training accuracy=0.257773 Epoch 4, Validation > accuracy=0.304988 > > > > > > > > > > > > real 11m7.356s > > > > > > user 406m9.910s > > > > > > sys 14m18.349s > > > > > > [23:00:49] ../src/io/iter_image_recordio_2.cc:172: > > > > > > ImageRecordIOParser2: > > > > > > /home/piotr/deeplearning-benchmark/data/cifar/train.rec, use 4 > > > > > > threads for decoding.. > > > > > > [23:00:49] ../src/io/iter_image_recordio_2.cc:230: Load mean > image > > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > > [23:00:49] ../src/io/iter_image_recordio_2.cc:248: Load mean > image > > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > completed > > > > > > [23:00:49] ../src/io/iter_image_recordio_2.cc:172: > > > > > > ImageRecordIOParser2: > > > > > > /home/piotr/deeplearning-benchmark/data/cifar/test.rec, use 4 > > > > > > threads for decoding.. > > > > > > [23:00:49] ../src/io/iter_image_recordio_2.cc:230: Load mean > image > > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > > [23:00:49] ../src/io/iter_image_recordio_2.cc:248: Load mean > image > > > > > > from /home/piotr/deeplearning-benchmark/data/cifar/mean.bin > > > > > completed > > > > > > lr_schedule: {0: 0.05, 82: 0.005000000000000001, 123: 0.0005, > 300: > > > > > > 0.0001} Epoch 0, Changed learning rate to 0.05 Epoch 0, Batch > 199, > > > > > > Speed=348.618154 Epoch 0, Duration=146.469352 Epoch 0, > Training > > > > > > accuracy=0.124121 Epoch 0, Validation accuracy=0.167227 Epoch > 1, > > > > > > Batch 199, Speed=452.790825 Epoch 1, Duration=130.199421 > Epoch 1, > > > > > > Training > > > > > > accuracy=0.183863 Epoch 1, Validation accuracy=0.237079 Epoch > 2, > > > > > > Batch 199, Speed=451.406559 Epoch 2, Duration=126.320823 > Epoch 2, > > > > > > Training > > > > > > accuracy=0.214844 Epoch 2, Validation accuracy=0.244692 Epoch > 3, > > > > > > Batch 199, Speed=403.161873 Epoch 3, Duration=125.331660 > Epoch 3, > > > > > > Training > > > > > > accuracy=0.243506 Epoch 3, Validation accuracy=0.301182 Epoch > 4, > > > > > > Batch 199, Speed=450.826598 Epoch 4, Duration=126.426253 > Epoch 4, > > > > > > Training > > > > > > accuracy=0.266424 Epoch 4, Validation accuracy=0.311899 > > > > > > > > > > > > real 11m21.930s > > > > > > user 415m3.855s > > > > > > sys 13m53.975s > > > > > > > > > > > > On Wed, Jun 26, 2019 at 3:50 PM Pedro Larroy > > > > > > <pedro.larroy.li...@gmail.com> wrote: > > > > > > > > > > > > > > Hi Ciyong, thanks for trying to reproduce: > > > > > > > > > > > > > > I used this one: > > > > > > > https://github.com/awslabs/deeplearning- > > > > > benchmark/blob/master/dawnbe > > > > > > > nch/cifar10.py > > > > > > > > > > > > > > Could you provide hardware and OS details? > > > > > > > > > > > > > > I will rerun and repost numbers in a few minutes. > > > > > > > > > > > > > > Pedro. > > > > > > > > > > > > > > On Wed, Jun 26, 2019 at 4:18 AM Chen, Ciyong > > > > > > > <ciyong.c...@intel.com> > > > > > wrote: > > > > > > > > > > > > > > > > Hi Pedro, > > > > > > > > > > > > > > > > I'm looking at this case, and using the script of > > > > > > > > > "incubator-mxnet/example/image-classification/train_cifar10.py" > > > > > > > > to get > > > > > the timing data, but seems there's not much difference between > mxnet > > > > > 1.4.1.rc0 and 1.5.0.rc1 on C5.18xlarge. > > > > > > > > > > > > > > > > Not sure if there's any difference in the python script, > can > > you > > > > > > > > point me > > > > > the link to get your script (cifar10.py)? > > > > > > > > Or you can also have a try with MXNet's script > > > > > > > > (train_cifar10.py) and see > > > > > the performance. > > > > > > > > > > > > > > > > Here's the command I used to collect the time: > > > > > > > > python train_cifar10.py --num-epoch=5 > > > > > > > > > > > > > > > > 1) 1.5.0.rc1 (4d9667121ae6fb643f2a02ab15e25231ed756cde) > > > > > > > > real 9m4.880s > > > > > > > > user 333m13.340s > > > > > > > > sys 14m36.100s > > > > > > > > > > > > > > > > 2) 1.4.1.rc0 (1a7199691f5cbc6012bb53eecbf884bed5ae6590) > > > > > > > > real 9m2.155s > > > > > > > > user 329m37.092s > > > > > > > > sys 16m8.668s > > > > > > > > > > > > > > > > -Ciyong > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > From: Pedro Larroy [mailto:pedro.larroy.li...@gmail.com] > > > > > > > > Sent: Wednesday, June 26, 2019 6:28 AM > > > > > > > > To: dev@mxnet.incubator.apache.org > > > > > > > > Cc: d...@mxnet.apache.org > > > > > > > > Subject: Re: [VOTE] Release Apache MXNet (incubating) > version > > > > > > > > 1.5.0.rc1 > > > > > > > > > > > > > > > > Hi these were my build flags and system info: > > > > > > > > > > > > > > > > > > > > > > > > --- # CMake configuration > > > > > > > > USE_CUDA: "OFF" # Build with CUDA support > > > > > > > > USE_OLDCMAKECUDA: "OFF" # Build with old cmake cuda > > > > > > > > USE_NCCL: "OFF" # Use NVidia NCCL with CUDA > > > > > > > > USE_OPENCV: "ON" # Build with OpenCV support > > > > > > > > USE_OPENMP: "ON" # Build with Openmp support > > > > > > > > USE_CUDNN: "ON" # Build with cudnn support) # one could > set > > > > > > > > CUDNN_ROOT for search path > > > > > > > > USE_SSE: "ON" # Build with x86 SSE instruction support IF > NOT > > > > > > > > ARM > > > > > > > > USE_F16C: "ON" # Build with x86 F16C instruction support) > # > > > > > autodetects support if "ON" > > > > > > > > USE_LAPACK: "ON" # Build with lapack support > > > > > > > > USE_MKL_IF_AVAILABLE: "ON" # Use MKL if found > > > > > > > > USE_MKLML_MKL: "ON" # Use MKLDNN variant of MKL (if MKL > found) > > > > > > > > IF USE_MKL_IF_AVAILABLE AND (NOT APPLE) > > > > > > > > USE_MKLDNN: "ON" # Use MKLDNN variant of MKL (if MKL > found) IF > > > > > > > > USE_MKL_IF_AVAILABLE AND (NOT APPLE) > > > > > > > > USE_OPERATOR_TUNING: "ON" # Enable auto-tuning of > operators IF > > > > > NOT > > > > > > > > MSVC > > > > > > > > USE_GPERFTOOLS: "ON" # Build with GPerfTools support (if > found) > > > > > > > > USE_JEMALLOC: "ON" # Build with Jemalloc support > > > > > > > > USE_PROFILER: "ON" # Build with Profiler support > > > > > > > > USE_DIST_KVSTORE: "OFF" # Build with DIST_KVSTORE support > > > > > > > > USE_PLUGINS_WARPCTC: "OFF" # Use WARPCTC Plugins > > > > > > > > USE_PLUGIN_CAFFE: "OFF" # Use Caffe Plugin > > > > > > > > USE_CPP_PACKAGE: "OFF" # Build C++ Package > > > > > > > > USE_MXNET_LIB_NAMING: "ON" # Use MXNet library naming > > > > > conventions. > > > > > > > > USE_GPROF: "OFF" # Compile with gprof (profiling) flag > > > > > > > > USE_CXX14_IF_AVAILABLE: "OFF" # Build with C++14 if the > > compiler > > > > > > > > supports it > > > > > > > > USE_VTUNE: "OFF" # Enable use of Intel Amplifier XE > (VTune)) # > > > > > > > > one could set VTUNE_ROOT for search path > > > > > > > > ENABLE_CUDA_RTC: "ON" # Build with CUDA runtime > compilation > > > > > > > > support > > > > > > > > BUILD_CPP_EXAMPLES: "ON" # Build cpp examples > > > > > > > > INSTALL_EXAMPLES: "OFF" # Install the example source > files. > > > > > > > > USE_SIGNAL_HANDLER: "ON" # Print stack traces on > segfaults. > > > > > > > > USE_TENSORRT: "OFF" # Enable infeference optimization with > > > > TensorRT. > > > > > > > > USE_ASAN: "OFF" # Enable Clang/GCC ASAN sanitizers. > > > > > > > > ENABLE_TESTCOVERAGE: "OFF" # Enable compilation with test > > > > > > > > coverage metric output > > > > > > > > CMAKE_BUILD_TYPE: "Release" > > > > > > > > CMAKE_CUDA_COMPILER_LAUNCHER: "ccache" > > > > > > > > CMAKE_C_COMPILER_LAUNCHER: "ccache" > > > > > > > > CMAKE_CXX_COMPILER_LAUNCHER: "ccache" > > > > > > > > > > > > > > > > commit 4d9667121ae6fb643f2a02ab15e25231ed756cde (HEAD, > tag: > > > > > > > > 1.5.0.rc1, > > > > > > > > upstream/v1.5.x) > > > > > > > > commit 1a7199691f5cbc6012bb53eecbf884bed5ae6590 (HEAD, > tag: > > > > > > > > 1.4.1.rc0, > > > > > > > > upstream/v1.4.x) > > > > > > > > > > > > > > > > curl http://169.254.169.254/latest/meta-data/instance-type > > > > > > > > c5d.18xlarge > > > > > > > > > > > > > > > > > > > > > > > > Version : 3.6.7 > > > > > > > > Compiler : GCC 8.2.0 > > > > > > > > Build : ('default', 'Oct 22 2018 11:32:17') > > > > > > > > Arch : ('64bit', 'ELF') > > > > > > > > ------------Pip Info----------- > > > > > > > > Version : 19.1.1 > > > > > > > > Directory : > > /home/piotr/mxnet_1.5/py3_venv/lib/python3.6/site- > > > > > packages/pip > > > > > > > > ----------MXNet Info----------- > > > > > > > > Version : 1.5.0 > > > > > > > > Directory : /home/piotr/mxnet_1.5/python/mxnet > > > > > > > > Hashtag not found. Not installed from pre-built package. > > > > > > > > ----------System Info---------- > > > > > > > > Platform : > > > > Linux-4.15.0-1035-aws-x86_64-with-Ubuntu-18.04-bionic > > > > > > > > system : Linux > > > > > > > > node : ip-172-31-63-171 > > > > > > > > release : 4.15.0-1035-aws > > > > > > > > version : #37-Ubuntu SMP Mon Mar 18 16:15:14 UTC 2019 > > > > > > > > ----------Hardware Info---------- > > > > > > > > machine : x86_64 > > > > > > > > processor : x86_64 > > > > > > > > Architecture: x86_64 > > > > > > > > CPU op-mode(s): 32-bit, 64-bit > > > > > > > > Byte Order: Little Endian > > > > > > > > CPU(s): 72 > > > > > > > > On-line CPU(s) list: 0-71 > > > > > > > > Thread(s) per core: 2 > > > > > > > > Core(s) per socket: 18 > > > > > > > > Socket(s): 2 > > > > > > > > NUMA node(s): 2 > > > > > > > > Vendor ID: GenuineIntel > > > > > > > > CPU family: 6 > > > > > > > > Model: 85 > > > > > > > > Model name: Intel(R) Xeon(R) Platinum 8124M CPU @ > > 3.00GHz > > > > > > > > Stepping: 4 > > > > > > > > CPU MHz: 1326.446 > > > > > > > > BogoMIPS: 6000.00 > > > > > > > > Hypervisor vendor: KVM > > > > > > > > Virtualization type: full > > > > > > > > L1d cache: 32K > > > > > > > > L1i cache: 32K > > > > > > > > L2 cache: 1024K > > > > > > > > L3 cache: 25344K > > > > > > > > NUMA node0 CPU(s): 0-17,36-53 > > > > > > > > NUMA node1 CPU(s): 18-35,54-71 > > > > > > > > Flags: fpu vme de pse tsc msr pae mce cx8 > apic > > sep > > > > mtrr > > > > > > > > pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht > syscall > > > > > > > > nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good > nopl > > > > > > > > xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq > monitor > > > > > > > > ssse3 fma cx16 pcid > > > > > > > > sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes > xsave > > > > > > > > avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch > > > > > > > > invpcid_single pti fsgsbase tsc_adjust bmi1 hle avx2 smep > bmi2 > > > > > > > > erms invpcid rtm mpx avx512f avx512dq rdseed adx smap > > clflushopt > > > > > > > > clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 > xsaves > > > > > > > > ida arat pku ospke ----------Network Test---------- > > > > > > > > > > > > > > > > ----------Python Info---------- > > > > > > > > Version : 3.6.7 > > > > > > > > Compiler : GCC 8.2.0 > > > > > > > > Build : ('default', 'Oct 22 2018 11:32:17') > > > > > > > > Arch : ('64bit', 'ELF') > > > > > > > > ------------Pip Info----------- > > > > > > > > Version : 19.1.1 > > > > > > > > Directory : > > /home/piotr/mxnet_1.4/py3_venv/lib/python3.6/site- > > > > > packages/pip > > > > > > > > ----------MXNet Info----------- > > > > > > > > Version : 1.4.1 > > > > > > > > Directory : /home/piotr/mxnet_1.4/python/mxnet > > > > > > > > Hashtag not found. Not installed from pre-built package. > > > > > > > > ----------System Info---------- > > > > > > > > Platform : > > > > Linux-4.15.0-1035-aws-x86_64-with-Ubuntu-18.04-bionic > > > > > > > > system : Linux > > > > > > > > node : ip-172-31-63-171 > > > > > > > > release : 4.15.0-1035-aws > > > > > > > > version : #37-Ubuntu SMP Mon Mar 18 16:15:14 UTC 2019 > > > > > > > > ----------Hardware Info---------- > > > > > > > > machine : x86_64 > > > > > > > > processor : x86_64 > > > > > > > > Architecture: x86_64 > > > > > > > > CPU op-mode(s): 32-bit, 64-bit > > > > > > > > Byte Order: Little Endian > > > > > > > > CPU(s): 72 > > > > > > > > On-line CPU(s) list: 0-71 > > > > > > > > Thread(s) per core: 2 > > > > > > > > Core(s) per socket: 18 > > > > > > > > Socket(s): 2 > > > > > > > > NUMA node(s): 2 > > > > > > > > Vendor ID: GenuineIntel > > > > > > > > CPU family: 6 > > > > > > > > Model: 85 > > > > > > > > Model name: Intel(R) Xeon(R) Platinum 8124M CPU @ > > 3.00GHz > > > > > > > > Stepping: 4 > > > > > > > > CPU MHz: 1223.344 > > > > > > > > BogoMIPS: 6000.00 > > > > > > > > Hypervisor vendor: KVM > > > > > > > > Virtualization type: full > > > > > > > > L1d cache: 32K > > > > > > > > L1i cache: 32K > > > > > > > > L2 cache: 1024K > > > > > > > > L3 cache: 25344K > > > > > > > > NUMA node0 CPU(s): 0-17,36-53 > > > > > > > > NUMA node1 CPU(s): 18-35,54-71 > > > > > > > > Flags: fpu vme de pse tsc msr pae mce cx8 > apic > > sep > > > > mtrr > > > > > > > > pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht > syscall > > > > > > > > nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good > nopl > > > > > > > > xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq > monitor > > > > > > > > ssse3 fma cx16 pcid > > > > > > > > sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes > xsave > > > > > > > > avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch > > > > > > > > invpcid_single pti fsgsbase tsc_adjust bmi1 hle avx2 smep > bmi2 > > > > > > > > erms invpcid rtm mpx avx512f avx512dq rdseed adx smap > > clflushopt > > > > > > > > clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 > xsaves > > > > > > > > ida arat pku ospke ----------Network Test---------- > > > > > > > > > > > > > > > > On Tue, Jun 25, 2019 at 2:35 PM Pedro Larroy > > > > > <pedro.larroy.li...@gmail.com> wrote: > > > > > > > > > > > > > > > > > > I did a training of cifar10 in CPU and seems there's > some > > > > > > > > > regressions in the range of 7% increase of training time > > against > > > > 1.4.1: > > > > > > > > > > > > > > > > > > (py3_venv) > > > > > > > > > piotr@ip-172-31-63-171 > :0:~/deeplearning-benchmark/dawnbench > > > > > > > > > (master)+$ time python cifar10.py --epochs 5 > > > > > > > > > real 11m30.388s > > > > > > > > > user 417m7.766s > > > > > > > > > sys 16m57.315s > > > > > > > > > > > > > > > > > > VS 1.4.1: > > > > > > > > > real 10m41.994s > > > > > > > > > user 392m40.646s > > > > > > > > > sys 12m30.601s > > > > > > > > > > > > > > > > > > > > > > > > > > > On Thu, Jun 20, 2019 at 10:15 PM Lai Wei < > > roywei...@gmail.com> > > > > > wrote: > > > > > > > > > > > > > > > > > > > > Hi Anirudh, > > > > > > > > > > > > > > > > > > > > Thanks for jumping into this quickly, I followed up > on the > > > > issue. > > > > > > > > > > > > > > > > > > > > I was meant for sockeye developer/maintainers to help > setup > > > > > > > > > > nightly tests and raise issues early. > > > > > > > > > > > > > > > > > > > > Thanks! > > > > > > > > > > > > > > > > > > > > On Fri, Jun 21, 2019 at 10:10 AM Haibin Lin > > > > > > > > > > <haibin.lin....@gmail.com> > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > In GluonNLP we are testing with MXNET nightly build > for > > > > > > > > > > > each PR, and we did find some MXNet related issue > caught > > by > > > > the CI. > > > > > > > > > > > I recommend other toolkits also add integration > tests > > with > > > > > > > > > > > MXNet > > > > > nightly. > > > > > > > > > > > It helps identify issues early. > > > > > > > > > > > > > > > > > > > > > > Best, > > > > > > > > > > > Haibin > > > > > > > > > > > > > > > > > > > > > > On Thu, Jun 20, 2019 at 18:52 Zhao, Patric > > > > > > > > > > > <patric.z...@intel.com> > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > Thanks to raise the issue and we will take a look > ASAP. > > > > > > > > > > > > > > > > > > > > > > > > The downstream cases is not in the MXNet CI so > it's > > hard > > > > > > > > > > > > to catch the potential bugs or performance > degradation > > > > > > > > > > > > for > > > > > MXNet developers. > > > > > > > > > > > > > > > > > > > > > > > > In the future, I suggest adding the major > downstream > > > > > > > > > > > > test cases, like > > > > > > > > > > > from > > > > > > > > > > > > sockeye, GluonNLP, GLuonCV, DGL, Gluon-TS, into > the > > > > > > > > > > > > nightly > > > > > test. > > > > > > > > > > > > If it's still too heavy, maybe testing it weekly > or > > > > > > > > > > > > monthly :) > > > > > > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > > > > > > > > > > > --Patric > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > > > > From: Anirudh Subramanian > > > > > > > > > > > > > [mailto:anirudh2...@gmail.com] > > > > > > > > > > > > > Sent: Friday, June 21, 2019 9:31 AM > > > > > > > > > > > > > To: dev@mxnet.incubator.apache.org > > > > > > > > > > > > > Cc: d...@mxnet.apache.org > > > > > > > > > > > > > Subject: Re: [VOTE] Release Apache MXNet > (incubating) > > > > > > > > > > > > > version > > > > > > > > > > > > > 1.5.0.rc1 > > > > > > > > > > > > > > > > > > > > > > > > > > Hi Lai, > > > > > > > > > > > > > > > > > > > > > > > > > > I have opened an issue: > > > > > > > > > > > > > > > https://github.com/apache/incubator-mxnet/issues/15297 > > > > > > > > > > > > > I came to know about this issue only today and > I have > > > > > > > > > > > > > not been > > > > > > > > > > > monitoring > > > > > > > > > > > > > sockeye. > > > > > > > > > > > > > I jumped onto this issue to make sure it wasn't > > caused > > > > > > > > > > > > > by the dlpack > > > > > > > > > > > > changes. > > > > > > > > > > > > > Also, I don't think sockeye CI checks against > > master, > > > > > > > > > > > > > it is using > > > > > > > > > > > 1.4.1. > > > > > > > > > > > > > > > > > > > > > > > > > > Anirudh > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Thu, Jun 20, 2019 at 6:17 PM Lai Wei > > > > > > > > > > > > > <roywei...@gmail.com> > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > Hi, > > > > > > > > > > > > > > > > > > > > > > > > > > > > Could you share which test failed and what’s > the > > > > > > > > > > > > > > crash? How to reproduce it? > > > > > > > > > > > > > > > > > > > > > > > > > > > > I was able to install sockeye and run all > tests > > passed. > > > > > > > > > > > > > > Using python setup.py test > > > > > > > > > > > > > > > > > > > > > > > > > > > > I have tested both nightly pip package and > > 1.5.0.rc1 > > > > > > > > > > > > > > > > > > > > > > > > > > > > It would be great to create an issue with > > > > > > > > > > > > > > reproducible steps and move the discussion > there. > > > > > > > > > > > > > > > > > > > > > > > > > > > > Also I see sockeye nightly build[1] has been > > failing > > > > > > > > > > > > > > for some time, > > > > > > > > > > > if > > > > > > > > > > > > > > it’s due to MXNet change, please raise this > early > > so > > > > > > > > > > > > > > we can track and solve it in time rather than > block > > > > > > > > > > > > > > the release > > > > > during vote time. > > > > > > > > > > > > > > > > > > > > > > > > > > > > [1] https://travis-ci.org/awslabs/sockeye > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Fri, Jun 21, 2019 at 7:01 AM Anirudh > Subramanian > > > > > > > > > > > > > > <anirudh2...@gmail.com > > > > > > > > > > > > > > > > > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > I was able to reproduce a crash with the > commit > > > > > > > > > > > > > > > 09202f7f261954383aa387144524d38f83f18d06 > but not > > > > > > > > > > > > > > > with the commit > > > > > a862270beb2d796c1ba311183f7f4a766a18ad6c. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Anirudh > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Thu, Jun 20, 2019 at 3:53 PM Lai Wei > > > > > > > > > > > > > > > <roywei...@gmail.com> > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Hi Przemyslaw, > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Is there an issue with more details to > track > > the > > > > problem? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Fri, Jun 21, 2019 at 6:04 AM Przemysław > > > > > > > > > > > > > > > > Trędak <ptre...@apache.org> > > > > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -1 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > There is a crash in sockeye unit test > (python > > > > > > > > > > > > > > > > > setup.py > > > > > > > > > > > > > > > > > test) observed starting with nightly 1.5 > > build > > > > > > > > > > > > > > > > > from > > > > > > > > > > > > > > > > > 6/13 and still occuring in > > > > > > > > > > > > > > > 1.5rc1. I > > > > > > > > > > > > > > > > > don't yet have the exact commit that is > > > > > > > > > > > > > > > > > responsible for it, but it is either > > > > > > > > > > > > > > > > > a862270beb2d796c1ba311183f7f4a766a18ad6c > > > > > > > > > > > > > > > > > (dlpack > > > > > > > > > > > > > > > > > related) or > > > > > > > > > > > > > > > > > 09202f7f261954383aa387144524d38f83f18d06 > > > > > > > > > > > > > > > > > (cached op > > > > > > > > > > > > > optimization). > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On 2019/06/20 06:36:22, Lai Wei > > > > > > > > > > > > > > > > > <roywei...@gmail.com> > > > > > wrote: > > > > > > > > > > > > > > > > > > Dear MXNet community, > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > This is the 3-day vote to release > Apache > > > > > > > > > > > > > > > > > > MXNet > > > > > > > > > > > > > > > > > > (incubating) version > > > > > > > > > > > > > > > > > 1.5.0. > > > > > > > > > > > > > > > > > > Voting on dev@ will start June 19, > > > > > > > > > > > > > > > > > > 23:59:59(PST) and close > > > > > > > > > > > on > > > > > > > > > > > > > > June > > > > > > > > > > > > > > > > 22, > > > > > > > > > > > > > > > > > > 23:59:59. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 1) Link to release notes: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/MXNET/1.5.0+Re > > > > > > > > > > > le > > > > > > > > > > > ase+No > > > > > > > > > > > te > > > > > > > > > > > > > > > s > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 2) Link to release candidate: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://github.com/apache/incubator-mxnet/releases/tag/1.5 > > > > > > > > > > > .0 > > > > > > > > > > > .r > > > > > > > > > > > > > > > > > > c1 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 3) Link to source and signatures on > apache > > > > dist server: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://dist.apache.org/repos/dist/dev/incubator/mxnet/1.5 > > > > > > > > > > > .0 > > > > > > > > > > > .r > > > > > > > > > > > > > > > > > > c1/ > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Please remember to TEST first before > voting > > > > > accordingly: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > +1 = approve > > > > > > > > > > > > > > > > > > +0 = no opinion > > > > > > > > > > > > > > > > > > -1 = disapprove (provide reason) > > > > > > > > > > > > > > > > > > -- > > > > > > > > > > > > > > > > > > Best Regards > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Lai > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > > > > > > > > Best Regards > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Lai > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > > > > > > Best Regards > > > > > > > > > > > > > > > > > > > > > > > > > > > > Lai > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > > Best Regards > > > > > > > > > > > > > > > > > > > > Lai > > > > > > > -- > > > Best Regards > > > > > > Lai > > > > > > -- > Sandeep Krishnamurthy
