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pthread back end hangs if used uninitialized #182

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rppawlo opened this issue Feb 2, 2016 · 5 comments
Closed

pthread back end hangs if used uninitialized #182

rppawlo opened this issue Feb 2, 2016 · 5 comments
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@crtrott
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Bug Broken / incorrect code; it could be Kokkos' responsibility, or others’ (e.g., Trilinos)
Milestone
GTC 2016

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@rppawlo
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rppawlo commented Feb 2, 2016

The other execution spaces seem to exit with an exception reported for attempting to use an execution space that is not yet initialized. However the pthread back end just hangs with no message. Can this be fixed to throw an exception?
@hcedwar hcedwar added the Bug Broken / incorrect code; it could be Kokkos' responsibility, or others’ (e.g., Trilinos) label Feb 4, 2016
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hcedwar commented Feb 4, 2016

This is a new bug in Kokkos_RangePolicy::set_auto_chunk_size() where the Threads::concurrency() has a value of zero before Threads is initialized(). This function needs to be fixed and reviewed.

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crtrott commented Feb 4, 2016

Args. I wondered why I was assigned this stuff - I don't like the threads backend ;-)

@crtrott crtrott added this to the GTC 2016 milestone Feb 4, 2016
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crtrott commented Feb 9, 2016

got it fixed on my machine, will push later. I am trying to get through a number of issues in one go.

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rppawlo commented Feb 10, 2016

Thanks Christian!

crtrott added a commit that referenced this issue Feb 10, 2016
@crtrott
Range/TeamPolicy: Addressing issue with setting up a policy before in…
9ce3096 
…itialize

This addresses issue #182. Before initialize the thread space returns 0
as concurrency which made a while loop run endless.
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crtrott commented Mar 14, 2016

I believe this was merged into master and Trilinos.

@crtrott crtrott closed this as completed Mar 14, 2016
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Bug Broken / incorrect code; it could be Kokkos' responsibility, or others’ (e.g., Trilinos)
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GTC 2016
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@rppawlo @hcedwar @crtrott