v2.x reduce vader XPMEM memory footprint #2382
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The original VADER_MAX_ADDRESS was tunned for x86_64 platforms only. For non x86_64 platforms we can use XPMEM_MAXADDR_SIZE. Signed-off-by: Pavel Shamis (Pasha) <[email protected]> (cherry picked from commit 60fd25f) Signed-off-by: Nathan Hjelm <[email protected]>
The vader btl kept a per-peer registration cache to keep track of attachments. This is not really a problem with small numbers of local ranks but can be a problem with large SMP machines. To reduce the footprint there is now one registration cache for all xpmem attachments. This will probably increase the lookup time for large transfers but is a worthwhile trade-off. Signed-off-by: Nathan Hjelm <[email protected]> (cherry picked from commit a652a19) Signed-off-by: Nathan Hjelm <[email protected]>
hppritcha
approved these changes
Nov 8, 2016
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