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Thomas Quinn

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11/03/2017

08:44 PM Charm++ Bug #1715: 20% slowdown in ChaNGa after commit 159fd36fc
I've tested the version with the problem above. The short-circuit now actually improves performance!

11/01/2017

03:33 PM Charm++ Bug #1715: 20% slowdown in ChaNGa after commit 159fd36fc
And one more data point: if I use "NullLB", tree building speeds up by a factor of 3!
03:15 PM Charm++ Bug #1715: 20% slowdown in ChaNGa after commit 159fd36fc
I did make a "comm" projections plot, and I think I am seeing what Sanjay is suggesting: a message goes to a comm thr...

10/26/2017

11:57 PM Charm++ Bug #1715: 20% slowdown in ChaNGa after commit 159fd36fc
I don't know if this helps, but I notice an even bigger slow down in the "tree building" phase of ChaNGa: nearly a fa...
08:40 PM Charm++ Bug #1715: 20% slowdown in ChaNGa after commit 159fd36fc
I can see the PNGs if I first download them, then view them with "display".

10/24/2017

11:50 AM Charm++ Bug #1715: 20% slowdown in ChaNGa after commit 159fd36fc
I tried the experiment of running the benchmark without load balancing (well, one load balance at the very beginning ...

10/23/2017

05:43 PM Charm++ Bug #1715: 20% slowdown in ChaNGa after commit 159fd36fc
I tried the experiment of running the benchmark without load balancing (well, one load balance at the very beginning ...

10/18/2017

09:47 PM Charm++ Bug #1715: 20% slowdown in ChaNGa after commit 159fd36fc
The given case doesn't have an unusual number of chares/PE. It does have a very small compute/communication ratio: I...

10/17/2017

12:16 PM Charm++ Bug #1715 (Merged): 20% slowdown in ChaNGa after commit 159fd36fc
A ChaNGa user reported a noticeable slow down when compiling with recent versions of charm. A "git bisect" session p...

08/14/2017

11:37 AM Charm++ Bug #1507: ckio test failure on gni-crayxc
With the recent fix, I can no longer reproduce this bug. I recommend this issue be closed.

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