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(WIP) MPI RMA support#251

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nelsonje wants to merge 53 commits intomasteruwsampa/grappa:masterfrom nelsonje/MPIRDMAuwsampa/grappa:nelsonje/MPIRDMACopy head branch name to clipboard

+8,287-64

Commits

Commits on Dec 15, 2015

• initial support for MPI puts

  nelsonje

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  4198346

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• add blocking and non-blocking puts and gets

  nelsonje

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  6c3b985

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• add test() for RMA requests

  nelsonje

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  4e583da

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• test multi-region allocation/access; fix bugs in region identification

  nelsonje

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  0412068

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• add atomic ops for int64_t

  nelsonje

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  d470e53

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• move collective/atomic MPI ops to a better place

  nelsonje

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  86f9f0e

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• add some raw blocking collectives

  nelsonje

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  ae9acd8

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• fix reductions to work both for user-defined and built-in ops

  nelsonje

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  ca89ae0

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• allow RMA requests to be reset without wait

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  7754199

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• some helper code for array allocations

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  beb423e

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• update atomic op implementation for new MPIOp class

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  0ddeb05

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• add compare-and-swap

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  71bcb49

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• whoops, need to force atomic ops to complete

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  551ab97

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• add raw allreduce

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  c7eddd9

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• add non-blocking atomics and cas

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  6c821ae

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• support registering already-allocated memory

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  4df6706

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• reduce scope of fence for atomic ops

  nelsonje

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  f764d39

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• fix window detection for some operations; add better error messages

  

  Jacob Nelson

  authored and

  nelsonje

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  cbbdac2

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• additional name for deregistering memory, plus check for registered memory

  

  Jacob Nelson

  authored and

  nelsonje

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  ec7feba

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• enable users to estimate memory that can be allocated in global address space

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  dea094e

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• apparently our Travis' Clang doesn't support std::map.emplace() yet

  nelsonje

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  79233b8

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• better alternative to std::map.emplace()

  nelsonje

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  1ed45f2

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Commits on Dec 17, 2015

• disable runpath support until it can be fixed

  

  Jacob Nelson

  committed
  b4836ce

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Commits on Jan 2, 2016

• expose RMA addresses explicitly so that we can convert addresses to offsets on different cores

  nelsonje

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  5ae1001

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• switch to typed RMAAddress

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  f4f02dd

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• whoops, correct typeo

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  99d947f

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• allow casts to const

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  251d2c7

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• add RMAAddress specialization for void and const void

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  cc6fe0d

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• remove local dereference capability; switch back to byte offsets; add member offset calculation to RMAAddress

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  f5f2957

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Commits on Jan 6, 2016

• Workaround to properly represent zero-size regions

  

  Jacob Nelson

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  1117fa8

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Commits on Jan 7, 2016

• Switch to dynamic window for RMA

  nelsonje

  committed
  b416929

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Commits on Jan 8, 2016

• ensure we don't try to deregister memory regions after we've already shut down MPI

  nelsonje

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Commits on Jan 10, 2016

• add simple repo revision number tracking

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  b91e754

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• update makefile instructions

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  9a14710

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Commits on Jan 11, 2016

• Add first pass of new symmetric allocator

  nelsonje

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  1dc357b

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• update comments

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• temporarily disable git version include until build order problem is worked out.

  

  Jacob Nelson

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Commits on Jan 12, 2016

• LLVM doesn't like reinterpret_cast in constant expressions; maybe a C-style cast is okay?

  nelsonje

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  feb22ba

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• convert symmetric region bounds to static const members rather than constexpr for compatibility

  nelsonje

  committed
  6456422

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• clean up comments

  nelsonje

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  4edac3d

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• activate new symmetric allocator for RMA

  nelsonje

  committed
  89d500f

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• switch off verbose output by default (fixes #263)

  

  Jacob Nelson

  committed
  d03b21b

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• fix backwards namespace usage

  

  Jacob Nelson

  committed
  c86f4fb

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• make symmetric alloc/free synchronous to avoid use-before-alloc/use-after-free

  

  Jacob Nelson

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  02dfd53

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• pre-allocate some space in symmetric heap during initialization

  

  Jacob Nelson

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  10cc70c

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• put initial symmetric heap size flag declaration in the right place

  

  Jacob Nelson

  committed
  947d97d

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• Merge pull request #267 from uwsampa/nelsonje/MPIRDMAallocator

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  nelsonje

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  1c3f2d9

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• get rid of debug print statement

  

  Jacob Nelson

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  b1fbd0c

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Commits on Feb 2, 2016

• fix off-by-one error in shared message pool

  nelsonje

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Commits on Feb 9, 2016

• add nontemporal payload messages

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• add failure handler for SIGBUS as well as SIGSEGV

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  c97d32f

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Commits on Mar 9, 2016

• Move communicator buffer mask calculation after memory pressure resizing routine

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Commits on Aug 20, 2016

• Add third-party compiler flags to configure to support building on Cray XC's

  

  Jacob Nelson

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