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CUDAminer crashes when Ctrl-C in auto mode

Open utahman opened this issue 11 years ago • 2 comments

  1. Start CUDAminer in auto mode (-l auto)
  2. After 8-10 seconds try to stop it (by pressing Ctrl-C)
  3. CUDAminer crashes

utahman avatar Apr 11 '14 04:04 utahman

what version was tested? a tagged release or the current master?

2014-04-11 6:45 GMT+02:00 utahman [email protected]:

  1. Start CUDAminer in auto mode (-l auto)
  2. After 8-10 seconds try to stop it (by pressing Ctrl-C)
  3. CUDAminer crashes

— Reply to this email directly or view it on GitHubhttps://github.com/cbuchner1/CudaMiner/issues/125 .

cbuchner1 avatar Apr 11 '14 08:04 cbuchner1

It was master from couple of weeks ago. The problem is in salsa_kurnel.cu In cuda_scrypt_core(int thr_id, int stream, unsigned int N) Line:     dim3  grid(WU_PER_LAUNCH/WU_PER_BLOCK, 1, 1);

That WU_PER_BLOCK is zero.

Adding if(!WU_PER_BLOCK) return; helps to avoid the crash but more solid solution would be to notify "auto" cycles to return immediately. What happens now is that after Ctrl-C it takes cudaminer some 10-30 seconds to actually stop (or crash). The reason is that "auto" is still searching for best configuration. A global flag like "exiting" checked periodically could make exiting faster.

utahman avatar Apr 11 '14 14:04 utahman