Skip to content

openib: Disable CUDA async by default #5746

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

Merged
merged 1 commit into from
Sep 21, 2018
Merged

openib: Disable CUDA async by default #5746

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion opal/mca/btl/openib/btl_openib_mca.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -560,7 +560,7 @@ int btl_openib_register_mca_params(void)
CHECK(reg_bool("cuda_async_recv", NULL,
"Enable or disable CUDA async recv copies "
"(true = async; false = sync)",
true, &mca_btl_openib_component.cuda_async_recv));
false, &mca_btl_openib_component.cuda_async_recv));
/* Also make the max send size larger for better GPU buffer performance */
mca_btl_openib_module.super.btl_max_send_size = 128 * 1024;
/* Turn of message coalescing - not sure if it works with GPU buffers */
Expand Down