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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2018/08/30 04:58:09 UTC
[GitHub] rosenrodt commented on issue #8966: NaiveEngine asynchronous error
in multi-threading
rosenrodt commented on issue #8966: NaiveEngine asynchronous error in multi-threading
URL: https://github.com/apache/incubator-mxnet/issues/8966#issuecomment-417190004
It seems like the internal memory pool tries to call `cudaFree()` on the same resource assigned to two or more MXNet instances when running Naive Engine. The memory pool is supposed to be thread-local singleton so each MXNet instance spawned by each thread does not contend with each other the same resource, but when running in Naive Engine it apparently is not the case. I get all sorts of errors like CUDA invalid pointer error and eventually cuBLAS failure
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