MPICH 3.4a3 released

A new preview release of MPICH, 3.4a3, is now available for download. This previews the 3.4 major release series. In the 3.4 series, ch4 replaces ch3 as the default device configuration. New features include GPU support, multi-VCI communication (experimental), XPMEM support, DAOS support in ROMIO (thanks to Intel contribution), business card exchange enhancements, and support for Arm HPC compilers.

Also in this release are several fixes and improvements in ch3, hydra, and common MPICH code. You can find the release on our downloads page.

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