Joseph Schuchart

Fix compilation of x86-64-asm atomic backend

1

https://github.com/open-mpi/ompi/issues/10797 showed that the x86-64 asm atomic backend is broken. This PR fixes that backend so that it at least compiles. It's not a fix for #10797 though. Signed-off-by: Joseph...

smsc/xpmem: alignment and stack memory space

5

This PR addresses two issues identified in https://github.com/open-mpi/ompi/issues/10121: 1) The aligned upper bound was off by 1. 2) We may not be able to map the full aligned range if...

HCOLL fails to save coll handlers and ends in Segfault when used with HAN

1

I'm trying to run `coll/han` with `coll/hcoll` as a backend but see the following issue on both `main` and `5.0.x` on Hawk (ConnectX-6 fabric): ``` mpirun -N 4 -n 16...

[5.0.x] Issues with some mpirun arguments (map-by, output-filename, indentation)

1

- Specifying the `--map-by` argument leads to an error: ``` $ mpirun -N 1 -n 2 --rank-by core --map-by node hostname -------------------------------------------------------------------------- When resolving deprecated command line options, the result...

Offload reduction operations to accelerator devices

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This PR is an attempt to offload reduction operations in `MPI_Allreduce` to accelerator devices if the input buffer is located on a device. A few notes: 1) There is a...

Issues with CUDA accelerator component initialization

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We're working with the CUDA accelerator component and tried to rebase my somewhat outdated branch to current main. I believe I found an issue with the way the CUDA component...

Compilation fails: relocation truncated to fit: R_X86_64_32S against symbol...

3

I am having problems trying to build the SHMEM port of the ISx benchmark on our Cray XC40 using `PrgEnv-gnu` (GCC 6.3.0). The error I get is: ``` $ make...

BOLT tasks and ABT_cond

4

I am trying to leverage low-level Argobots features inside BOLT tasks (BOLT 1.0rc3, built with internal Argobots). In particular, I would like to block a set of tasks on a...

Increment on volatile variables in deprecated

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## Describe the bug Building TTG with GCC 11.4.0 raises a bunch of warnings from PaRSEC: ``` /home/jschuchart/src/ttg/ttg/build/_deps/parsec-src/parsec/class/list.h: In function 'parsec_list_item_t* parsec_list_nolock_pop_back(parsec_list_t*)': /home/jschuchart/src/ttg/ttg/build/_deps/parsec-src/parsec/class/list_item.h:326:16: warning: '--' expression of 'volatile'-qualified type is...

zone_malloc should handle 0-sized allocations gracefully

1

## Describe the bug If we pass zero as size to `zone_malloc` it will return `NULL`, which will be interpreted by `kernel_push` as an out-of-memory situation so the task will...