Skip to content
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

Think about threaded ScaLAPACK alternatives for eigenvalue solve #252

Open
tkoskela opened this issue Aug 29, 2023 · 0 comments
Open

Think about threaded ScaLAPACK alternatives for eigenvalue solve #252

tkoskela opened this issue Aug 29, 2023 · 0 comments
Labels
improves: speed Speed-up of code type: question Issue to be discussed by developers

Comments

@tkoskela
Copy link
Contributor

In multithreaded runs, ScaLAPACK calls to pzhevgx are becoming a significant non-threaded bottleneck. At least the Intel mkl implementation of ScaLAPACK does not gain performance by adding threads to mkl calls. If we want to eliminate this bottleneck, we would have to look for alternatives to pzhevgx.

List of ideas:
@tkoskela tkoskela added improves: speed Speed-up of code type: question Issue to be discussed by developers labels Aug 29, 2023
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
improves: speed Speed-up of code type: question Issue to be discussed by developers
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
1 participant
@tkoskela