New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

GOMP_CPU_AFFINITY stops multithreading #84

Open

jwang323 opened this issue Mar 29, 2015 · 1 comment

Labels

bug imported Priority-Medium

Contributor

jwang323 commented Mar 29, 2015

From volyrkr on June 06, 2013 14:48:25

What steps will reproduce the problem? (say we have 6-core CPU)

export GOMP_CPU_AFFINITY=0-5
run the cuda/ocelot program What is the expected output? What do you see instead? All CPU cores must be equally loaded.
Instead only one core is busy, others are idle. What version of the product are you using? On what operating system? svn revision: 2235, system: gentoo GNU/Linux amd64 Please provide any additional information below. My own OpenMP code works fine(better than without) with affinity set.

Original issue: http://code.google.com/p/gpuocelot/issues/detail?id=85

Contributor Author

jwang323 commented Mar 29, 2015

From volyrkr on June 06, 2013 11:51:33

The backend is llvm. Maybe it's llvm's bug.

jwang323 added bug imported Priority-Medium labels

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment