openmpi

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Автор	SHA1	Сообщение	Дата
Jelena Pjesivac-Grbovic	b608887466	Adding variant of linear alltoall algorithm where the number of outstanding requests can be limited using mca parameters. The implementation passed Intel, IMB-3.2, and mpi_test_suite tests over TCP and MX up to 128 processes (64 nodes), on both 32-bit and 64-bit machines. It is not activated by default, but it should be useful for really large communicator sizes. This commit was SVN r13720.	2007-02-20 04:25:00 +00:00
George Bosilca	be27ee6fa0	Correct the bcast problem where we always did a bcast with segzise of 0. Activate the reduce decision function. Others small updates (mostly TAB to spaces). This commit was SVN r12161.	2006-10-18 02:00:46 +00:00
Graham Fagg	c31a5ad4b3	A few small changes that just expanded in the name of neatness... (1) As pointed out by Torsten after Jeff comment that there are 15 collectives yesterday.. nope.. I have 16 but miss counted them in my ifdefs (I had two #11s). Replaces with enum... (2) Added a readonly MCA param for how many backend algorithms are available per collective (used by benchmarker/STS) This allowed me to remove the tuned query internal functions and replace them with ompi_coll_tuned_forced_max_algorithms[COLL]. (3) I was reading the user forced MCA params for the collectives on each comm create (module init) but I then put the values into a global set of variables (like ompi_coll_tuned_reduce_forced_algorithm). To fix this and make the code neater: (a) The component looks up the MCA param indices on Open if dynamic_rules is set via the ompi_coll_tuned_COLLECTIVE_intra_check_forced_init () call. (b) Got rid of the ompi_coll_ompi_coll_tuned_COLLECTIVE_forced_algorithm/segmentsize/etc globals with a struct that is now cached on the module data hung off the communicator. i.e. done right. (c) On module init if dynamic rules enabled we call a general getvalues routine (in coll_tuned_forced.c) to get the CURRENT values using the MCA param indices and then put them on the modules data segment. A shorter version of getvalues exists for barrier which only needs the algorithm choice This commit was SVN r9663.	2006-04-19 23:42:06 +00:00

Автор

SHA1

Сообщение

Дата

Jelena Pjesivac-Grbovic

b608887466

Adding variant of linear alltoall algorithm where the number of

outstanding requests can be limited using mca parameters.
The implementation passed Intel, IMB-3.2, and mpi_test_suite tests over
TCP and MX up to 128 processes (64 nodes), on both 32-bit and 64-bit machines.
It is not activated by default, but it should be useful for really large
communicator sizes.

This commit was SVN r13720.

2007-02-20 04:25:00 +00:00

George Bosilca

be27ee6fa0

Correct the bcast problem where we always did a bcast with segzise of 0.

Activate the reduce decision function.
Others small updates (mostly TAB to spaces).

This commit was SVN r12161.

2006-10-18 02:00:46 +00:00

Graham Fagg

c31a5ad4b3

A few small changes that just expanded in the name of neatness...

(1) As pointed out by Torsten after Jeff comment that there are 15 collectives yesterday.. nope.. I have 16 but
    miss counted them in my ifdefs (I had two #11s). Replaces with enum...
(2) Added a readonly MCA param for how many backend algorithms are available per collective (used by benchmarker/STS)
    This allowed me to remove the tuned query internal functions and replace them with ompi_coll_tuned_forced_max_algorithms[COLL].
(3) I was reading the user forced MCA params for the collectives on each comm create (module init) but I then put the 
    values into a global set of variables (like ompi_coll_tuned_reduce_forced_algorithm).

    To fix this and make the code neater:
    (a) The component looks up the MCA param indices on Open if dynamic_rules is set via the
                        ompi_coll_tuned_COLLECTIVE_intra_check_forced_init () call.
    (b) Got rid of the ompi_coll_ompi_coll_tuned_COLLECTIVE_forced_algorithm/segmentsize/etc globals with a struct that
            is now cached on the module data hung off the communicator. i.e. done right.
    (c) On module init if dynamic rules enabled we call a general getvalues routine (in coll_tuned_forced.c) to get the
            CURRENT values using the MCA param indices and then put them on the modules data segment.
        A shorter version of getvalues exists for barrier which only needs the algorithm choice

This commit was SVN r9663.

2006-04-19 23:42:06 +00:00

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