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Add a framework to support different types of threading models including user space thread packages such as Qthreads and argobot: https://github.com/pmodels/argobots https://github.com/Qthreads/qthreads The default threading model is pthreads. Alternate thread models are specificed at configure time using the --with-threads=X option. The framework is static. The theading model to use is selected at Open MPI configure/build time.
use the OPAL_CONFIG_POSIX_THREADS macro Signed-off-by: Howard Pritchard <howardp@lanl.gov>
remove workaround introduced into the wrappers Makefile. This can be done due to the configury refactor. rework the threads framework configury to move a good chunk of setup to the top config directory to make sure thread package specific compile/link args are defined early in the configure process. Signed-off-by: Howard Pritchard <howardp@lanl.gov>
config: fix thread configury - Add double quotations - Change Argobot to Argobots config: implement Argobots check If the poll time is too long, MPI hangs. This quick fix just sets it to 0, but it is not good for the Pthreads version. Need to find a good way to abstract it. Note that even 1 (= 1 millisecond) causes disastrous performance degradation.
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Add a framework to support different types of threading models including
user space thread packages such as Qthreads and argobots:
https://github.com/pmodels/argobots
https://github.com/Qthreads/qthreads
The default threading model is pthreads. Alternate thread models are
specificed at configure time using the --with-threads=X option.
The framework is static. The theading model to use is selected at
Open MPI configure/build time.