[Openmp-dev] Failure executing OpenMP applications in BOTS benchmark with clang

[Hahnfeld, Jonas via Openmp-dev]

Hi,

 

I haven’t tried OMP_DYNAMIC. Do you have that set on the other machine where it is now working fine?

In general, this should be fine: If you don’t have OMP_NUM_THREADS set, it will spawn as many threads as there are cores in the system.

 

Cheers,

Jonas

 

From: Mohammad Norouzi [mailto:norouzi at cs.tu-darmstadt.de] 
Sent: Friday, April 28, 2017 10:24 AM
To: Hahnfeld, Jonas <Hahnfeld at itc.rwth-aachen.de>
Subject: Failure executing OpenMP applications in BOTS benchmark with clang

 

Hi Jonas,

Thank you very much for your reply in llvm-dev community!

>>Hi Mohammad,

>>moving this to openmp-dev as you mention an assertion in the OpenMP runtime (questions about the compiler should go cfe-dev instead of llvm-dev).

>>I just tried reproducing the issue on my system and was able to run all binaries built with Clang 3.9.1 and the latest trunk of the OpenMP runtime in Debug mode. (I had to increase OMP_STACKSIZE for UTS, otherwise it kept crashing)

>>Which benchmark do you have problems with and which environment variables do you set? Is there anything special about your setup?

I tried to test it on a different machine and it works fine! My settings on the old machine are as follows:
OMP_DYNAMIC=FALSE
OMP_STACKSIZE="32M"

Do you think I should set other environment variables? 

Thank you and best, 
Mohammad

>>Regards,

>>Jonas








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