Re: [gmx-users] MPI oversubscription

2013-02-06 Thread Christian H.
http://pastebin.com/6t0y5mTX So it's the same problem with io.h etc. if I just run cmake without any mpi flags in my build directory. -- gmx-users mailing listgmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users * Please search the archive at http://www.gromacs.org/Suppo

Re: [gmx-users] MPI oversubscription

2013-02-06 Thread Christian H.
And if the zip file did not get through: http://de.pastebin.ca/2311103 2013/2/6 Christian H. > Seems like my last message got lost because the CMakeError.log was too > big, I attached that as a zip file. > > > > If i call sysconf() without any arguments it re

Re: [gmx-users] MPI oversubscription

2013-02-06 Thread Christian H.
Seems like my last message got lost because the CMakeError.log was too big, I attached that as a zip file. If i call sysconf() without any arguments it returns 1. Sysconf(_SC_NPROCESSOR_ONLN) complains that _SC_NPROCESSOR_ONLN is not defined. Also this comes up during make, which looks like trou

Re: [gmx-users] MPI oversubscription

2013-02-05 Thread Christian H.
Head of .log: Gromacs version:VERSION 5.0-dev-20121213-e1fcb0a-dirty GIT SHA1 hash: e1fcb0a3d2768a8bb28c2e4e8012123ce773e18c (dirty) Precision: single MPI library:MPI OpenMP support: disabled GPU support:disabled invsqrt routine:gmx_software_invsqrt(x) CPU

Re: [gmx-users] MPI oversubscription

2013-02-05 Thread Christian H.
None of the variables referenced here are set on my system, the print statements are never executed. What I did: printf("Checking which processor variable is set"); #if defined(_SC_NPROCESSORS_ONLN) ret = sysconf(_SC_NPROCESSORS_ONLN); printf("case 1 ret = %d\n",ret); #elif defined(_SC_N

Re: [gmx-users] MPI oversubscription

2013-02-05 Thread Christian H.
>From the .log file: Present hardware specification: Vendor: GenuineIntel Brand: Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz Family: 6 Model: 42 Stepping: 7 Features: aes apic avx clfsh cmov cx8 cx16 htt lahf_lm mmx msr nonstop_tsc pcid pclmuldq pdcm popcnt pse rdtscp sse2 sse3 sse4.1 sse4.2 sss

[gmx-users] MPI oversubscription

2013-02-05 Thread Christian H.
Hi, I am using the latest git version of gromacs, compiled with gcc 4.6.2 and openmpi 1.6.3. I start the program using the usual mpirun -np 8 mdrun_mpi ... This always leads to a warning: Using 1 MPI process WARNING: On node 0: oversubscribing the available 0 logical CPU cores per node with 1 MPI