Hi, I'm trying to use and evaluate gcc with OpenACC on some NVIDIA GPUs. I succeeded to build gcc with OpenACC by using http://scelementary.com/2015/04/25/openacc-in-gcc.html as a reference. Then, I succeeded to use Kepler GPU. However, I tried to use it on old GPUs (Fermi), and I failed to execute it. I noticed that there are some "sm_30" and "COMPUTE_30" keywords in gcc and nvptx sources. Then, I modified them to "sm_20" and "COMPUTE_20", but I failed to execute my programs, too. Are there any developers who can make gcc with OpenACC to support other than "sm_30"?
thanks -- View this message in context: http://gcc.1065356.n5.nabble.com/How-to-use-old-GPU-Fermi-in-gcc-with-OpenACC-tp1147463.html Sent from the gcc - Dev mailing list archive at Nabble.com.
