[petsc-users] SLEPc: GPU accelerated shift-invert

2023-03-17 Thread Greg Kahanamoku-Meyer
Hi, I'm trying to accelerate a shift-invert eigensolve with GPU, but the computation seems to be spending a lot of its time in the CPU. Looking at the output with "-log_view -log_view_gpu_time" I see that MatLUFactorNum is not using the GPU (GPU Mflops/s is 0), and is taking the majority of the co

[petsc-users] Possible to turn off unused option warning in debug mode?

2022-07-20 Thread Greg Kahanamoku-Meyer
Hi, The unused option warning ( https://petsc.org/release/docs/manualpages/Sys/PetscOptionsLeft.html) is automatically turned on when running in debug mode. Is there a way to turn it off (other than turning off all debugging)? For a bit of background, I am using PETSc through petsc4py, and certai