5 thoughts on - Folding At Home OT

• Yes, I’m a CentOS Folder. I’m one of 3 or 4 currently active on Team CentOS

  However, I’ve been unable to get GPU folding working, so I just dedicate all six cores to it.

  You may want to ask your original question on the forums at the FAH site, also.

  Fred

• +1
  Another long time folder, I don’t however do GPU folding just run it on my C7 24 core monster :)

• Hey Fred,

  Thanks for the tip. I googled the FAH Hardware Forum. They recommend the NVIDIA 970 or 960 as their first choice.

• True. but it “should” work on Fermi chipsets or later, and it doesn’t for me. I may well have a configuration problem, but I drew the line at butchering my system configuration to find out, this is my personal workstation, at home, and I don’t wanna break it.

  (it tries, and tries, and tries to fold but takes some error or other, backs off, tries again, and again, and again.)

• Hello all,

  I tried also to run a GPU queue with FAH and it seems that the client program needs a newer libc library than available in C6. The logs were not helpfull:

  09:33:52:WU00:FS01:Running FahCore: /usr/bin/FAHCoreWrapper
  /var/lib/fahclient/cores/web.stanford.edu/~pande/Linux/AMD64
  /NVIDIA/Fermi/Core_17.fah/FahCore_17 -dir 00 -suffix 01 -version 704 -lifeline 13249
  -checkpoint 15 -gpu 0 -gpu-vendor nvidia
  09:33:52:WU00:FS01:Started FahCore on PID 13558
  09:33:52:WU00:FS01:Core PID:13562
  09:33:52:WU00:FS01:FahCore 0x17 started
  09:33:53:WARNING:WU00:FS01:FahCore returned: FAILED_2 (1 = 0x1)

  I have discovered the real error only after manually running the command listed in logs with strace:

  [pid 13645] writev(2, [{“/var/lib/fahclient/cores/web.sta”…, 96}, {“: “, 2},
  {“/lib64/libm.so.6”, 16}, {“: “, 2}, {“version `GLIBC_2.15′ not found (“…, 141}, {“\n”,
  1}], 6) = 258
  [pid 13645] writev(2, [{“/var/lib/fahclient/cores/web.sta”…, 96}, {“: “, 2},
  {“/usr/lib64/libstdc++.so.6”, 25}, {“: “, 2}, {“version `GLIBCXX_3.4.15′ not fou”…,
  145}, {“\n”, 1}], 6) = 271
  [pid 13645] writev(2, [{“/var/lib/fahclient/cores/web.sta”…, 96}, {“: “, 2},
  {“/lib64/libc.so.6”, 16}, {“: “, 2}, {“version `GLIBC_2.15′ not found (“…, 141}, {“\n”,
  1}], 6) = 258
  [pid 13645] writev(2, [{“/var/lib/fahclient/cores/web.sta”…, 96}, {“: “, 2},
  {“/lib64/libc.so.6”, 16}, {“: “, 2}, {“version `GLIBC_2.14′ not found (“…, 141}, {“\n”,
  1}], 6) = 258

  I have to investigate if there is a alternate fahclient (older version maybe) which works in C6

  Lec

  PS: I have seen that the FAH executable for cpu queue is statically linked:

  file /var/lib/fahclient/cores/web.stanford.edu/~pande/Linux/AMD64/Core_a4.fah/FahCore_a4
  /var/lib/fahclient/cores/web.stanford.edu/~pande/Linux/AMD64/Core_a4.fah/FahCore_a4: ELF
  64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, for GNU/Linux 2.6.15, stripped