James D. Trotter

icon indicating a website link https://www.simula.no/people/james

icon company Simula Research Laboratory icon location Oslo, Norway icon location Postdoctoral researcher, High-Performance Computing at Simula Research Laboratory.

Results 4 comments of James D. Trotter

ucx not work with openmpi4.0.3:No components were able to be opened in the pml framework.

I'm seeing the same issue with UCX-1.9.0 and OpenMPI 4.0.5. I have so far been unable to figure out why UCX fails to initialise. Is there anything more we can...

ucx not work with openmpi4.0.3:No components were able to be opened in the pml framework.

After setting `OMPI_MCA_pml_ucx_verbose=10`, I found the following message: ```pml_ucx.c:307 UCP worker does not support MPI_THREAD_MULTIPLE. PML UCX could not be selected``` In the end, it looks to be the same...

Performance of HYPRE_IJMatrixSetValues, HYRPE_IJMatrixAddToValues, HYPRE_IJMatrixAssemble

> I’m gonna take a crack at this. I’ve been reading the assembly code in IJMatrix_parcsr_device.c and I have a pretty good idea of what’s happening. I’m going to create...

Performance of HYPRE_IJMatrixSetValues, HYRPE_IJMatrixAddToValues, HYPRE_IJMatrixAssemble

Thanks, Paul. I believe this must be the paper you are referring to: https://www.nrel.gov/docs/fy21osti/79645.pdf. I found it very interesting, and I would greatly appreciate anything you can share. I suspect...