Memory consistency models for shared-memory multiprocessors
Memory consistency models for shared-memory multiprocessors
Lazy release consistency for distributed shared memory
Lazy release consistency for distributed shared memory
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IWOMP'08 Proceedings of the 4th international conference on OpenMP in a new era of parallelism
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IWOMP'05/IWOMP'06 Proceedings of the 2005 and 2006 international conference on OpenMP shared memory parallel programming
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IWOMP'05/IWOMP'06 Proceedings of the 2005 and 2006 international conference on OpenMP shared memory parallel programming
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IWOMP'05/IWOMP'06 Proceedings of the 2005 and 2006 international conference on OpenMP shared memory parallel programming
LCPC'09 Proceedings of the 22nd international conference on Languages and Compilers for Parallel Computing
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The memory model of OpenMP has been widely misunderstood since the first OpenMP specification was published in 1997 (Fortran 1.0). The proposed OpenMP specification (version 2.5) includes a memory model section to address this issue. This section unifies and clarifies the text about the use of memory in all previous specifications, and relates the model to well-known memory consistency semantics. In this paper, we discuss the memory model and show its implications for future distributed shared memory implementations of OpenMP.