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common/cuda: Fix near-hang when remote side has exited #3265

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Jul 31, 2017
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common/cuda: Fix near-hang when remote side has exited #3265

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8 changes: 4 additions & 4 deletions opal/mca/common/cuda/common_cuda.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1157,10 +1157,10 @@ int cuda_closememhandle(void *reg_data, mca_rcache_base_registration_t *reg)
if (ctx_ok) {
result = cuFunc.cuIpcCloseMemHandle((CUdeviceptr)cuda_reg->base.alloc_base);
if (OPAL_UNLIKELY(CUDA_SUCCESS != result)) {
opal_show_help("help-mpi-common-cuda.txt", "cuIpcCloseMemHandle failed",
true, result, cuda_reg->base.alloc_base);
opal_output(0, "Sleep on %d", getpid());
sleep(20);
if (CUDA_ERROR_DEINITIALIZED != result) {
opal_show_help("help-mpi-common-cuda.txt", "cuIpcCloseMemHandle failed",
true, result, cuda_reg->base.alloc_base);
}
/* We will just continue on and hope things continue to work. */
} else {
opal_output_verbose(10, mca_common_cuda_output,
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