Re: [QE-users] [SUSPECT ATTACHMENT REMOVED] [QE-GPU] OpenMP is not working with my compilation
Dear Spiga, Thank you for the reply. I will ask admin how to do that. ---Sender--- Takahiro Chiba 1st-year student at grad. school of chem. sci. and eng., Hokkaido Univ. Expected graduation date: Mar. 2023 takahiro_ch...@eis.hokudai.ac.jp - 2021年8月3日(火) 17:55 Filippo Spiga : > > Dear Takahiro, > > if the cluster supports containers, you could try to deploy the Quantum > ESPRESSO on the NVIDIA GPU Cloud (NCG). See here: > https://ngc.nvidia.com/catalog/containers/hpc:quantum_espresso (latest > version uploaded is v6.7) > > Make sure you run the calculation only on the socket where the GPU is > attached. Consult your HPC centre User Support team to understand how to do > it. > > -- > Filippo SPIGA ~ http://fspiga.github.io ~ skype: filippo.spiga > > > On Mon, 2 Aug 2021 at 00:01, Takahiro Chiba > wrote: >> >> Dear experienced users, >> >> I have trouble in utilizing OpenMP with my compilation. From the >> output file, pw.x 6.8 recognizes "OMP_NUM_THREADS=2", but it took same >> time as "OMP_NUM_THREADS=1", and according to PBS batch queue, only >> 100% (not 200%) of CPU is used. Therefore, QE 6.8 with GPU is not as >> fast as expected. >> >> I used nvidia HPC SDK 20.9, cuda 10.1, and Intel MKL 2021.2. The node >> has two Xeon Gold 6248, one Tesla V100 32GB, and 768GB of RAM. >> Benchmark results and make.inc are attached as tarball. >> >> Could you please point out my mistake? >> >> ---Sender--- >> Takahiro Chiba >> 1st-year student at grad. school of chem. sci. and eng., Hokkaido Univ. >> Expected graduation date: Mar. 2023 >> takahiro_ch...@eis.hokudai.ac.jp >> - >> ___ >> Quantum ESPRESSO is supported by MaX (www.max-centre.eu) >> users mailing list users@lists.quantum-espresso.org >> https://lists.quantum-espresso.org/mailman/listinfo/users > > ___ > Quantum ESPRESSO is supported by MaX (www.max-centre.eu) > users mailing list users@lists.quantum-espresso.org > https://lists.quantum-espresso.org/mailman/listinfo/users ___ Quantum ESPRESSO is supported by MaX (www.max-centre.eu) users mailing list users@lists.quantum-espresso.org https://lists.quantum-espresso.org/mailman/listinfo/users
Re: [QE-users] [SUSPECT ATTACHMENT REMOVED] [QE-GPU] OpenMP is not working with my compilation
Dear Takahiro, if the cluster supports containers, you could try to deploy the Quantum ESPRESSO on the NVIDIA GPU Cloud (NCG). See here: https://ngc.nvidia.com/catalog/containers/hpc:quantum_espresso (latest version uploaded is v6.7) Make sure you run the calculation *only* on the socket where the GPU is attached. Consult your HPC centre User Support team to understand how to do it. -- Filippo SPIGA ~ http://fspiga.github.io ~ skype: filippo.spiga On Mon, 2 Aug 2021 at 00:01, Takahiro Chiba < takahiro_ch...@eis.hokudai.ac.jp> wrote: > Dear experienced users, > > I have trouble in utilizing OpenMP with my compilation. From the > output file, pw.x 6.8 recognizes "OMP_NUM_THREADS=2", but it took same > time as "OMP_NUM_THREADS=1", and according to PBS batch queue, only > 100% (not 200%) of CPU is used. Therefore, QE 6.8 with GPU is not as > fast as expected. > > I used nvidia HPC SDK 20.9, cuda 10.1, and Intel MKL 2021.2. The node > has two Xeon Gold 6248, one Tesla V100 32GB, and 768GB of RAM. > Benchmark results and make.inc are attached as tarball. > > Could you please point out my mistake? > > ---Sender--- > Takahiro Chiba > 1st-year student at grad. school of chem. sci. and eng., Hokkaido Univ. > Expected graduation date: Mar. 2023 > takahiro_ch...@eis.hokudai.ac.jp > - > ___ > Quantum ESPRESSO is supported by MaX (www.max-centre.eu) > users mailing list users@lists.quantum-espresso.org > https://lists.quantum-espresso.org/mailman/listinfo/users ___ Quantum ESPRESSO is supported by MaX (www.max-centre.eu) users mailing list users@lists.quantum-espresso.org https://lists.quantum-espresso.org/mailman/listinfo/users
Re: [QE-users] [SUSPECT ATTACHMENT REMOVED] [QE-GPU] OpenMP is not working with my compilation
I don't think there is any mistake: when GPU's are used, OpenMP has the rather marginal role of speeding up some calculations that are not GPU-accelerated Paolo On Mon, Aug 2, 2021 at 1:01 AM Takahiro Chiba < takahiro_ch...@eis.hokudai.ac.jp> wrote: > Dear experienced users, > > I have trouble in utilizing OpenMP with my compilation. From the > output file, pw.x 6.8 recognizes "OMP_NUM_THREADS=2", but it took same > time as "OMP_NUM_THREADS=1", and according to PBS batch queue, only > 100% (not 200%) of CPU is used. Therefore, QE 6.8 with GPU is not as > fast as expected. > > I used nvidia HPC SDK 20.9, cuda 10.1, and Intel MKL 2021.2. The node > has two Xeon Gold 6248, one Tesla V100 32GB, and 768GB of RAM. > Benchmark results and make.inc are attached as tarball. > > Could you please point out my mistake? > > ---Sender--- > Takahiro Chiba > 1st-year student at grad. school of chem. sci. and eng., Hokkaido Univ. > Expected graduation date: Mar. 2023 > takahiro_ch...@eis.hokudai.ac.jp > - > ___ > Quantum ESPRESSO is supported by MaX (www.max-centre.eu) > users mailing list users@lists.quantum-espresso.org > https://lists.quantum-espresso.org/mailman/listinfo/users -- Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche, Univ. Udine, via delle Scienze 206, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222 ___ Quantum ESPRESSO is supported by MaX (www.max-centre.eu) users mailing list users@lists.quantum-espresso.org https://lists.quantum-espresso.org/mailman/listinfo/users