Jaemin Choi
Implements the Channel API in Charm++ that allows the user to create a channel between a pair of chares and send/receive data using that channel (MPI-like). This aims at reducing...
With `tests/charm++/chkpt`, the code hangs when it is checkpointed **and** restarted using 2 processes each with 2 worker threads on LC Lassen. This is actually not included in the Makefile's...
Using reference number matching with `CkCallback` causes a hang. Reproducible with #3157 on OLCF Summit with both `pamilrts` and `netlrts` builds.
On Summit, `CmiCheckAffinity` in `_initCharm` routine (`src/ck-core/init.C`) causes a hang when run on two nodes. Observed with the UCX and PAMILRTS builds. Runs fine when these routines are commented out....
Test command: `jsrun -n2 -a1 -c1 -g1 ./test +ppn 1 +pemap L0,4` Hangs with both `pamilrts-linux-ppc64le-smp` and `netlrts-linux-ppc64le-smp` on OLCF Summit.
Substantial performance difference in Jacobi3D was observed between Charm++ (without overdecomposition) and MPI on Summit. See Figure 7b in https://arxiv.org/pdf/2202.11819.pdf. After separately measuring times for the computation and communication phases...
Hello, I'd like to report two errors that I observed when running the MPI + Kokkos version of MiniMD (`miniMD/kokkos`). The first error is the T and P values showing...