v1.1.0

The highlight of this release is that Aluminum now has a logo.

There were some other, slightly less interesting, changes, too. Notably full support for multi-threaded communication in Aluminum. There are also significant improvements to support on HIP/ROCm platforms and extensive internal cleanups.

• Aluminum has a logo now!
• Support the AL_MPI_SERIALIZED compile-time flag, which will run blocking MPI calls on the progress engine for situations where all calls need to come from the same thread.
• Support AL_THREAD_MULTIPLE for support in Aluminum for safe multi-threaded communication.
• Significant improvements in benchmarking/testing infrastructure.
• Removed support for custom MPI allreduce algorithms. Aluminum now uses the native MPI implementations.
• Added an al_info binary to provide basic info on Aluminum.
• Better progress engine binding on HIP/ROCm systems.
• The host-transfer backend uses stream memory operations on HIP/ROCm systems when available.
• Aluminum no longer relies on hipify for HIP/ROCm systems.
• Aluminum's CMake exports components to identify backend support at build time.
• Significant internal code reorganizations/cleanup for CUDA stuff and the progress engine.
• Various bugfixes and other minor improvements.