VEO 1.3.2a, API version 4

New release built on official v1.3.2 plus some fixes:

• no fork during DMA, avoid data corruption,
• handle vedl_wait_exception() returning without exception,
• threads consuming 100% CPU, send BLOCKing system call message to VEOS (now all cores available for OpenMP),
• enforcing strict ordering of reqs pushed to queue,
• check if reqs are valid before waiting for them.

This release has veo_api_version(), which returns an integer with the API version. The official release does not have that function, yet.

Please use with the corresponding veoffload-veorun-1.3.2a release.

VEO API version 4

Fixes issue with static veorun linking.
Added veo_proc_create_static() explicit interface for providing own veorun.
Bumped API_VERSION to 4.

VEO API version 3 multithreaded (update 2)

This version eliminates the need for the fake TID and syscall interception. libveo_mt.so is not built any more and not needed to be linked with or preloaded. Some traps might still be hidden, and the one main limitation is that veo_proc_create() still needs to be called from the main thread.

Use this with the veoffload-veorun release 1.2.2a.

VEO API version 3 VH multithreaded (update)

Compared to 1.2.2a this version fixes two issues. An occasional deadlock in veo_call_wait_result() when used from multiple threads, and a very rare issue with request ordering.

I'd recommend to both, link with -lveo_mt and also preload /opt/nec/ve/veos/lib64/libveo_mt.so

export LD_PRELOAD=/opt/nec/ve/veos/lib64/libveo_mt.so

Use this together with https://github.com/SX_Aurora/veoffload-veorun release 1.2.2a!

VEO API v3 multithreaded VH program

With this version, using VEO from multiple threads of a VH program is possible with the limitation that veo_proc_create() is called from the main thread. All subsequent VEO calls can be executed from other VH threads. This requires linking with both -lveo -lveo_mt.

VEO API version 3 for veos-1.2.1

This version needs to be installed on veos-1.2.1 systems in order to be able to use OpenMP VEO kernels (with static veorun linking).

VEO API version 3

VEO w/ async memory transfers support. VEO API version 3.

VEO w/ stackargs support

VEO at the level of v1.0.1 with fixed ELF ID (using the official ELF ID) and the patches for stack arguments with intent "in".