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Added builtin op implementations for RMA-only ops.  MPI_REPLACE was not defined
in the op_table prior to this commit.  Also includes an alternate
implementation of the linked list test that uses fetch-and-op with these
operations to enable the use of shared locks.

Reviewer: goodell

Adds implementation of atomic fetch-and-op operation and several test cases.

Reviewer: buntinas

r10173.  Dropped r10174.

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through mpiexec.

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Reviewer: buntinas

Reviewer: buntinas

They were causing an unnecessary conflict with ROMIO's "lock.c", which
libtool would handle for us with some extra internal hackery.  This is a
bit cleaner and faster.

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This includes most remaining "Makefile.sm" files and the "simplemake.in"
program itself.  This commit also attempts to get the
"test/mpi/maint/updatefiles" into better shape, although I have not yet
tested most of these modifications.

Partly reviewed by balaji@.

The code currently fails with assertions when I run any MPI program
with hydra and pmi2:

    assert (*count * sizeof(struct HYD_pmcd_token)) failed

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Reviewed by buntinas.

symbols for them.

Reviewed by goodell.

1. Move the new extension FT routines into the src/mpi/comm directory
instead of the separate src/mpix directory, since it's clearly using
the MPI internals.

2. Move the MPIX_mutex functionality to mpi.h.in instead of a separate
mpix.h.  This will allow us to use device-specific mpix_foo.h
functionality that the user can use to buy-in to device-specific
extensions.

3. Move the ARMCI and Mutex functionality to src/armci and src/mutex
directories respectively.

Reviewed by goodell.

This is a workaround to allow "negative" target displacements (i.e. target
addresses which are negative when interpreted as signed integers) in dynamic
windows.

Reviewer: none

The source_win_handle is used to inform the target that the RMA access epoch
has ended.  This was removed from the CAS packet to save space and was replaced
with another packet type, MPIDI_CH3_PKT_CAS_UNLOCK, which conveys the same
information.

Reviewer: buntinas

This patch adds support for the new MPI-3 compare-and-swap routine.  The
implementation embeds the data into the packet header to reduce the number of
messages.

Reviewer: buntinas

AM_PROG_AR is available.

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this.

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Reviewed by robl.

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 - add a default for PAC_SET_HEADER_LIB_PATH
 - refactor it to be a bit more readable and flexible
 - several corrections to the original code which used CFLAGS and
   CPPFLAGS incorrectly.

Reviewed by buntinas.

longer used.

Reviewed by buntinas.

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