cblas_dgemm crashing when thread is terminated

[Almeida__Caetano]

Hello,

I have a multithread code and I using MKL multithreaded as well.

I have created a unit test that always crashes MKL.

Let me explain the test:

• From the main thread (MT), I create another thread (T1) to multiply a 4096x4096 matrix.
• T1 calls cblas_dgemm
• It's a heavy processing, then I let MT sleep for 1 second
• Then, I invoke T1 termination
• MKL crashes 100% of my attempts so far

Would someone know how can I work this around? I mean, to turn cblas_dgemm thread safer.

Thanks.

[Gennady_F_Intel]

could you give us the example of the code we could compile and reproduce?

[Almeida__Caetano · Accepted solution]

Resolved!

Updated from 2018.3 to 2019.4 and the crash doesn't happen anymore!