Hello: I have installed GMX4.6.1 and GMX4.5.5 on the same cluster. There are 2 Xoen E5 2630CPU in one node on this cluster. I tested the performance of those two versions of GMX, found GMX4.6.1 only had 0.62 performance of GMX4.5.5. When I checked the .log file of GMX4.6.1, I found ... CPU acceleration: NONE FFT library: FFTW 3.2 wrappers to MKL Large file support: enabled RDTSCP usage: disabled Built on: Mon Apr 8 10:46:58 CST 2013 Built by: root@node3 [CMAKE] Build OS/arch: Linux 2.6.18-274.el5 x86_64 Build CPU vendor: Unknown, detect failed Build CPU brand: Unknown, detect failed Build CPU family: 0 Model: 0 Stepping: 0 Build CPU features: C compiler: /public/software/mpi/openmpi-16-intel/bin/mpicc Intel icc (ICC) 12.1.0 20111011 C compiler flags: -std=gnu99 -Wall -ip -funroll-all-loops -O3 -DNDEBUG
So I think my installed GMX4.6.1 failed to use AVX_256 kenerl. The installed commend is below. Could someone give some suggestion how to solve this problem? Thank you very much! *$cmake ../ \* *-DCMAKE_INSTALL_PREFIX=/public/software/gromacs-4.6 \* *-DGMX_MPI=ON \* *-DCMAKE_C_COMPILER=/public/software/mpi/openmpi-16-intel/bin/mpicc \* *-DCMAKE_CXX_COMPILER=/public/software/mpi/openmpi-16-intel/bin/mpicxx \* * -DGMX_BINARY_SUFFIX=_mpi \* *-DFFTWF_INCLUDE_DIR=/public/software/mathlib/fftw331-float/include \* *-DFFTWF_LIBRARY=/public/software/mathlib/fftw331-float/lib/libfftw3f.so * *$make –j 6* *$make install* Cheers up -- Yukun Wang PhD candidate Institute of Natural Sciences && College of Life Science, Shanghai Jiao Tong University Cell phone: 13621806236. China Shanghai -- gmx-users mailing list gmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! * Please don't post (un)subscribe requests to the list. Use the www interface or send it to gmx-users-requ...@gromacs.org. * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists