GASNet-EX 2019.6.0 Release Announcement
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Paul Hargrove
Jun 14, 2019, 4:37:16 PM6/14/19
to gasnet...@lbl.gov, gasnet announce
The Pagoda project at Lawrence Berkeley National Laboratory is pleased to announce the availability of our latest release of GASNet-EX, available for download from https://gasnet.lbl.gov.
GASNet-EX is the next generation of the GASNet-1 communication system. The GASNet interfaces are being redesigned to accommodate the emerging needs of exascale supercomputing, providing communication services to a variety of PGAS programming models on current and future HPC systems. This upgrade is being done as part of the DOE Exascale Computing Project (ECP). Note that additional features are coming soon, and are not yet present in this release.
GASNet-EX is now our primary product, and support for old GASNet-1 releases is being phased out. Developers of new and existing GASNet clients and conduits are strongly encouraged to migrate to GASNet-EX. A backwards-compatibility layer in GASNet-EX eases the adoption path for existing GASNet-1 clients, allowing drop-in replacement and incremental transition for most clients.
-Paul H. Hargrove, on behalf of the Pagoda Project at LBNL
GASNet-EX ChangeLog:
06-14-2019: GASNet-EX 2019.6.0 Release
* InfiniBand Verbs (ibv-conduit)
- NEW: Improved support for correct operation on multi-rail InfiniBand systems
- New envvar GASNET_USE_FENCED_PUTS controls the strictness of ordering
* Cray uGNI gemini-conduit
- This conduit is now DEPRECATED and will be removed in a future release.
- The aries-conduit remains supported and under active development.
* GASNet-EX Spec v0.8:
- Add GASNET_HIDDEN_AM_CONCURRENCY_LEVEL
- The EX spec file has been renamed to docs/GASNet-EX.txt
* Notable bugs fixed in this release:
- bug3880: XLC 16.1.x ICE compiling ibv-conduit for Power9
- bug3943: infrequent startup hang with PSHM and over 62 PPN
- bug3946: Improve gasnetrun support for CPU binding esp with Open MPI
MD5 hash of GASNet-2019.6.0.tar.gz: 69cfa4ff0691eeb9fe6631d9c55f452f
GASNet-EX is the next generation of the GASNet-1 communication system. The GASNet interfaces are being redesigned to accommodate the emerging needs of exascale supercomputing, providing communication services to a variety of PGAS programming models on current and future HPC systems. This upgrade is being done as part of the DOE Exascale Computing Project (ECP). Note that additional features are coming soon, and are not yet present in this release.
GASNet-EX is now our primary product, and support for old GASNet-1 releases is being phased out. Developers of new and existing GASNet clients and conduits are strongly encouraged to migrate to GASNet-EX. A backwards-compatibility layer in GASNet-EX eases the adoption path for existing GASNet-1 clients, allowing drop-in replacement and incremental transition for most clients.
-Paul H. Hargrove, on behalf of the Pagoda Project at LBNL
GASNet-EX ChangeLog:
06-14-2019: GASNet-EX 2019.6.0 Release
* InfiniBand Verbs (ibv-conduit)
- NEW: Improved support for correct operation on multi-rail InfiniBand systems
- New envvar GASNET_USE_FENCED_PUTS controls the strictness of ordering
guarantees for put RMA completion on multi-rail hardware, addressing bug 3447.
- Compilation of AM-over-RDMA support is now disabled by default
- Improve error messages for some cases.
* Cray uGNI aries-conduit
- The Aries Collective Engine, if available, is now used to accelerate
- Improve error messages for some cases.
* Cray uGNI aries-conduit
- The Aries Collective Engine, if available, is now used to accelerate
gex_Coll_BarrierNB().
* Cray uGNI gemini-conduit
- This conduit is now DEPRECATED and will be removed in a future release.
- The aries-conduit remains supported and under active development.
* GASNet-EX Spec v0.8:
- Add GASNET_HIDDEN_AM_CONCURRENCY_LEVEL
- The EX spec file has been renamed to docs/GASNet-EX.txt
* Notable bugs fixed in this release:
- bug3880: XLC 16.1.x ICE compiling ibv-conduit for Power9
- bug3943: infrequent startup hang with PSHM and over 62 PPN
- bug3946: Improve gasnetrun support for CPU binding esp with Open MPI
MD5 hash of GASNet-2019.6.0.tar.gz: 69cfa4ff0691eeb9fe6631d9c55f452f
--
Paul H. Hargrove <PHHar...@lbl.gov>
Computer Languages & Systems Software (CLaSS) Group
Computer Science Department
Lawrence Berkeley National Laboratory
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