Search found 3 matches

by pramesh
Thu Jun 11, 2020 5:32 pm
Forum: User discussion
Topic: Max batch size for dgesv ?
Replies: 4
Views: 2914

Re: Max batch size for dgesv ?

Understood.

Like Cramers's rule ? Hadn't thought of that.

Thanks

Ramesh
by pramesh
Thu Jun 11, 2020 12:30 pm
Forum: User discussion
Topic: Max batch size for dgesv ?
Replies: 4
Views: 2914

Re: Max batch size for dgesv ?

Ahmad;

Thank your for the fast response. Yes, the problem is in dgetrf. In my application, the LHS is fixed for all time steps, so the fused version will not help.

BTW won't it be better/faster to use the X or Y dimension for batching ?

Thanks

Ramesh
by pramesh
Wed Jun 10, 2020 9:19 pm
Forum: User discussion
Topic: Max batch size for dgesv ?
Replies: 4
Views: 2914

Max batch size for dgesv ?

Hi; I started using Magma to solve batched 3x3 problems using dgetrf and dgetrs. It worked fine for small problems but dies for batch sizes of ~80K. The retval from the magma call is MAGMA_SUCCESS but cudaPeekatLastError reports : CUDA Error Code[9]: invalid configuration argument I then tried one o...