All -- Fujitsu has submitted a comprehensive PR to add FP16 datatypes to OMPI under "MPIX_*" names.
It adds quite a bit of infrastructure in the datatype and op areas, and then exposes that infrastructure through "MPIX_" names in an mpiext extension. >From a technical standpoint, this PR seems to be just about ready. But it's a >big change, and we'd like a few more eyes on it. Here's some information from >KAWASHIMA Takahiro: All, could you comment if you have opinions? I am about to merge FP16 (half precision floating point) datatype support. Corresponding C/C++ types are not yet standardized but they are proposed in ISO/IEC WGs. The background is described in a issue<https://github.com/mpi-forum/mpi-issues/issues/65> and a slide<https://github.com/mpi-forum/mpi-forum.github.io/raw/master/slides/2018/12/FP16-2018-Dec-AH.pdf> in the MPI Forum. Links to related pages are listed in my page<https://github.com/kawashima-fj/ompi/wiki/Half-precision-floating-point>. Please respond by COB Thursday, Feb 7, 2019. Thanks. -- Jeff Squyres jsquy...@cisco.com<mailto:jsquy...@cisco.com>
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