General

Profile

Jaemin Choi

Issues

Projects

Activity

03/09/2017

02:49 PM Charm++ Bug #1462: Programs hang at startup with CUDA build
There is a mempool initialization step that does a bunch of @cudaMallocHost@ calls (which I believe has nothing to do...

03/08/2017

04:21 PM Charm++ Bug #1464: CUDA example programs hang when run with 1 PE
Thought it might be because of the handler functions indices, so wrapped and moved out @CmiRegisterHandler()@ calls t...
03:20 PM Charm++ Bug #1462 (In Progress): Programs hang at startup with CUDA build
Exactly same code (@examples/charm++/hello/1darray@) with 4 PEs crashes on @nano6@ but runs fine on @nano7@.
GPUMana...
12:34 AM Charm++ Bug #1464 (In Progress): CUDA example programs hang when run with 1 PE
CUDA example programs (@overlapTest@, @concurrentKernels@, @callbacks@, etc.) hang when they are run with only 1 PE.
...
12:04 AM Charm++ Bug #1462 (Closed): Programs hang at startup with CUDA build
This was due to the GPU being heavily used by other processes.
@nvidia-smi -q@ shows the current usage.
When tested...
06:19 PM Charm++ Bug #1462: Programs hang at startup with CUDA build
The culprit is @cudaStreamCreate()@ in @GPUManager::initHybridAPIHelper()@. No idea why this is the cause yet, becaus...

03/07/2017

05:45 PM Charm++ Bug #1462 (In Progress): Programs hang at startup with CUDA build
Problem seems to be in @initHybridAPI()@ in @ck-core/init.C@, because programs run fine if I comment this out along ...
05:20 PM Charm++ Bug #1462 (In Progress): Programs hang at startup with CUDA build
When using the CUDA build of Charm++, example programs located both under @examples/charm++/cuda@ hang at startup.
...

03/04/2017

06:07 PM Charm++ Support #1456 (Feedback): Add more stream callbacks for use after HToD transfer and kernel execution
Patch uploaded to gerrit for review.
[[https://charm.cs.illinois.edu/gerrit/#/c/2288/]]

03/03/2017

01:30 PM Charm++ Support #1456 (Feedback): Add more stream callbacks for use after HToD transfer and kernel execution
The user may have use for callbacks that occur after completion of host-to-device data transfer and kernel execution,...

Also available in: Atom