Significant performance decrease from cusparseZ(D)csrmm2 to cusparseSpMM

Accelerated Computing GPU-Accelerated Libraries
#1

Hi,
I just moved from CUDA 10.1 and using cusparseZ(D)csrmm2 (deprecated) to CUDA 11.0 using cusparseSpMM now. I also see a significant performance decrease. A similar issue has also been reported in (Performance Downgrade when changing [deprecated] cusparsecsrmm() to cusparseSpMM() ).
Is there any progress here?
Many thanks,
Regards,
Reto

#2

A bug has been filed.

#3

Hi Matt,

regarding code snippet. The code snippet given in the initial post of “dleonard” I am referring to in my post matches pretty well. Is this enough?

Thanks.
Regards,
Reto