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TAMPI v4.0

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@narru19 narru19 released this 15 Nov 17:44
v4.0
a5c93bf

Version 4.0, Fri Nov 15, 2024

The 4.0 release introduces TAMPI-OPT, a newly optimized version of the library that ensures only a single thread accesses the MPI interface through delegation techniques. This approach gives access comparable to the highest MPI performance of single-threaded scenarios. Moreover, it introduces several bug fixes and usability and code improvements. Due to the new optimizations, some features have been ultimately dropped, while others will remain unsupported temporarily. For a detailed list check the bullet points below.

General

  • Major library optimizations by serializing communications
  • Bump required MPI standard to 3.0 or later
  • Add support to adjust the completion polling task period dynamically
  • Improved collective operations constructors
  • Improve allocations of Operations through a scalable allocator
  • Improved ALPI symbol handling
  • Other bug fixes and code/performance improvements

Unsupported Features

  • Temporarily dropped support for Fortran.
  • Temporarily dropped support for request-based MPI operations: MPI_Wait, MPI_Waitall, TAMPI_Iwait, TAMPI_Iwaitall.
  • Dropped support for MPI_Sendrecv and MPI_Sendrecv_replace. Every point-to-point and collective operation is supported.
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