Mikael Simberg

Add GCC 14 and HIP 6 CI configuration

1

Fixes #1164.

Increase curl and job timeouts and retries in CSCS CI

2

Also remove the hardcoded `NUM_PROCS` from the CI configuration.

I think it makes sense to add a new CI configuration with HIP 6 and keep the existing 5.X configuration, so that we cover all supported major versions.

Use valgrind in CUDA CI configuration

4

Fixes #802.

Rewrite channels to expose a sender interface

2

Currently the various `channel` implementations in pika expose a low level API, similar to lockfree queues, where one can get an item through `bool channel(T*)`. A more interesting API would...

Later versions of stdexec support both `tag_invoke` and member functions, but the standard will use member functions only. We should try to migrate to use member functions only where it...

https://github.com/pika-org/pika/pull/1202 disabled static libraries in the APEX CI configuration because it had issues. Investigate if this is an APEX or pika problem.

Drop support for older compilers

2

Once Piz Daint is no longer operational I think we can drop official support for GCC 9 and 10 (GCC 11 we want to keep for CUDA 11 support). We...