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GTC performance broken #600

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maeneas opened this issue Nov 6, 2012 · 1 comment
Closed

GTC performance broken #600

maeneas opened this issue Nov 6, 2012 · 1 comment
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@maeneas
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maeneas commented Nov 6, 2012

Some recent change (I assume the change to the defaults in AGAS cache size) has broken the performance for GTC. Here's what I see:

Cores Before After -- no arguments (29 Oct 2009) After -- -Ihpx.agas.local_cache_size=4096 (29 Oct 2009)
1 540 514
2 286 278
4 161 159
8 98 98
16 54 56 55
32 24 64 33
64 21 109 105
128 42

I can no longer reproduce the numbers reported earlier.

I reported this problem several days ago to Hartmut but now figure I need to create a ticket.

@ghost ghost assigned hkaiser Nov 6, 2012
@sithhell
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This should be fixed now. We made significant improvements in the HPX core:

  1. Distributed AGAS
  2. speedup of the parcelports

Those should have fixed the problems mentioned. Please reopen with a description of how to reproduce the performance problem if the problem still exists.

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