Pcu object #388
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Pcu object #388
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This commit adds a MPI state that's separate from the global variables to the internal pcu_mpi interfaces. The user level PCU interface remains unchanged. However, this change lays the groundwork for PCU2 that will not make use of global state. This is important for some use cases like working around the spectrum-mpi comm_dup bug. The removal of global state also improves testability and modularity of this code.
Throughout the code base it was assumed that the mpi functions were implemented through pmpi and so no other implementation really could have been implemented. This change just removes the complexity from having the vtable.
This commit allows the pcu_mpi to be initialized into a stack variable rather than allways allocating on the heap.
cwsmith
approved these changes
Mar 31, 2023
pcu/CMakeLists.txt
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| @@ -9,7 +9,7 @@ message(STATUS "PCU_COMPRESS: " ${PCU_COMPRESS}) | |||
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| # Package sources | |||
| set(SOURCES | |||
| pcu.c | |||
| pcu.cc | |||
pcu/CMakeLists.txt
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| # Package headers | ||
| set(HEADERS | ||
| PCU.h | ||
| pcu_io.h | ||
| pcu_io.h |
pcu/pcu.cc
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I think it's good I just figured we may want to discuss/make sure we are comfortable before merging. |
meeting notes
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This commit adds a MPI state that's separate from the global variables to the internal pcu_mpi interfaces. The user level PCU interface remains unchanged. However, this change lays the groundwork for PCU2 that will not make use of global state. This is important for some use cases like working around the spectrum-mpi comm_dup bug. The removal of global state also improves testability and modularity of this code.
Throughout the code base it was assumed that the mpi functions were implemented through pmpi and so no other implementation really could have been implemented. This change just removes the complexity from having the vtable.
This commit allows the pcu_mpi to be initialized into a stack variable rather than allways allocating on the heap.
pcu-object changes
Open
…pcu-object Merging pcu-object
pcu-object fixed warnings
flagdanger
reviewed
May 2, 2024
| PhastaSharing* shr = new PhastaSharing(m); | ||
| PCU_Comm_Begin(); | ||
| PhastaSharing shr(m); | ||
| m->getPCU()->Begin(); | ||
| apf::MeshIterator* it = m->begin(dim); | ||
| apf::MeshEntity* v; | ||
| while ((v = m->iterate(it))) { |
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