[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2014-01-13 Thread Fabricio Cannini
Em 12-12-2013 08:20, Ivan Girotto escreveu: Hi there I've finally figured out the problem. First, i changed the benchmark to DEISA Medium so that i could use a wider range of machines, as it ( predictably ) used less than half of the memory than the PRACE medium benchmark demanded. Then i

[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2013-12-17 Thread Fabricio Cannini
Em 12-12-2013 08:20, Ivan Girotto escreveu: > Dear Fabricio, > > I reckon there is some inconsistency in the results you are obtaining. > The AMD 6380 is a 16-core model. I'm wondering how do you map the > process affinity while running on 8 cores. > Without controlling such mapping you can obtain

[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2013-12-17 Thread Fabricio Cannini
Em 12-12-2013 08:20, Ivan Girotto escreveu: > Dear Fabricio, > > I reckon there is some inconsistency in the results you are obtaining. > The AMD 6380 is a 16-core model. I'm wondering how do you map the > process affinity while running on 8 cores. > Without controlling such mapping you can obtain

[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2013-12-12 Thread Ivan Girotto
Dear Fabricio, I reckon there is some inconsistency in the results you are obtaining. The AMD 6380 is a 16-core model. I'm wondering how do you map the process affinity while running on 8 cores. Without controlling such mapping you can obtain substantial performance variation at each execution.

[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2013-12-11 Thread Fabricio Cannini
Em 11-12-2013 15:51, Paolo Giannozzi escreveu: > On Tue, 2013-12-10 at 19:49 -0200, Fabricio Cannini wrote: >> Em 10-12-2013 18:34, Paolo Giannozzi escreveu: >>> First of all you should verify if multi-threading libraries >>> are conflicting with MPI parallelization. >> >> Yes, i did look into it

[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2013-12-10 Thread Paolo Giannozzi
First of all you should verify if multi-threading libraries are conflicting with MPI parallelization. P. On Tue, 2013-12-10 at 12:26 -0200, Fabricio Cannini wrote: > Em 10-12-2013 06:01, Paolo Giannozzi escreveu: > > First of all: why do you want to use an old QE version? P. > > Because the

[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2013-12-10 Thread Fabricio Cannini
Em 10-12-2013 18:34, Paolo Giannozzi escreveu: > First of all you should verify if multi-threading libraries > are conflicting with MPI parallelization. Yes, i did look into it already. I can send you the 'make.sys' files of all compilations if it helps . TIA, Fabricio

[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2013-12-10 Thread Fabricio Cannini
Em 10-12-2013 06:01, Paolo Giannozzi escreveu: > First of all: why do you want to use an old QE version? P. Because the problem is of a client of mine, and he is using this very version , so I'm trying to reproduce the problem as exactly as possible. Also, I'm a sysadmin, not a scientist . ;)

[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2013-12-10 Thread Paolo Giannozzi
First of all: why do you want to use an old QE version? P. On Mon, 2013-12-09 at 19:16 -0200, Fabricio Cannini wrote: > Hi All > > > I'm facing a very strange situation with the above version of QE, > compiled with : > > - intel 12.1.3 > - mkl 10.0, > - fftw 3.2.2 ( OS package ) > - openmpi

[Pw_forum] Problem with QE 4.2.1 and AMD Opteron 6200 / 6300

2013-12-09 Thread Fabricio Cannini
Hi All I'm facing a very strange situation with the above version of QE, compiled with : - intel 12.1.3 - mkl 10.0, - fftw 3.2.2 ( OS package ) - openmpi 1.4.5 Running 'prace-medium' benchmark as a test . http://qe-forge.org/gf/project/q-e/frs/?action=FrsReleaseView_id=47 The OS is centos