Skip to content

fix: adapt benchmark memory allocation to device limits #36

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

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

fix: adapt benchmark memory allocation to device limits #36

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
5 changes: 3 additions & 2 deletions src/main.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,9 @@ string fraction(const float x) {
}

void benchmark_device(const Device_Info& device_info) {
const uint N = 4096u*4096u; // kernel range: N*M*sizeof(float) = 1GB memory allocation
const uint M = 16u; // coalescence size
const uint target_memory_mb = min(1024u, device_info.max_global_buffer); // use 1GB or device limit, whichever is smaller
const uint N = (target_memory_mb*1048576u)/(M*sizeof(float)); // calculate N based on available memory
const uint N_kernel = 256u; // iterations for kernel calls
const uint N_memory = 16u; // iterations for PCIe memory transfers

Expand Down Expand Up @@ -197,4 +198,4 @@ int main(int argc, char* argv[]) {
println("'-----------------------------------------------------------------------------'");
#endif // Linux
return 0;
}
}