Rob Van der Wijngaart
Rob Van der Wijngaart
Geez, who wrote that shitty code?
What's funny is that as I was implementing the synch_p2p code I looked for examples of the type of synchronization needed and landed on the LU NAS Parallel Benchmark. I...
These errors arose recently when we turned many integers into longs to avoid integer overflow triggered by large problem sizes. It has always been my goal to compile without ANY...
That is excellent. Now we should still learn to build in a less verbose mode--same for Grappa--so that by default we don't get all this runtime information.
Indeed. This is useful information, but clutters the output of batch runs.
That's strange. I used to have tiling for all three stencil implementations, in the good old days of SERIAL, MPI, and OpenMP. But I hardly ever saw a benefit. and...
Yes, we saw the same with transpose, as you may recall. But I wouldn't do anything automatic. Users should always be allowed to shoot themselves in the foot.
But maybe we can warn them of the bullet holes.
I meant to ask you if you ever get requests for box-shaped stencils (instead of star stencils). For the AMR code I effectively had to support that in MPI (too...
Assignment accepted