One-sided vs. Two-sided Communication Paradigms on Relaxed ...

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OverviewF U T U R E T E C H N O L O G I E S G R O U P Application performance of one-<strong>sided</strong> <strong>vs</strong>. two-<strong>sided</strong> on Cray XE06(Gemini Interconnect). Brief Overview of Cray software stack and hardware on Hopper. Support of Relaxation Performance comparison of communication primitives using strictand relaxed ordering. Single-<strong>sided</strong> <strong>vs</strong>. two-<strong>sided</strong> communication paradigms interactionwith relaxed ordering.LAWRENCE BERKELEY NATIONAL LABORATORY
MotivationF U T U R E T E C H N O L O G I E S G R O U PPercentage UPC over MPI speedup250%200%40%30%20%10%0%-10%64 procs256 procsep ft is lu mg sp bt Harmonic meanAlso, why Gasnet is not matching vendor performance?Why single-<strong>sided</strong> performs better than two-<strong>sided</strong> MPI?LAWRENCE BERKELEY NATIONAL LABORATORY
Page 1: F U T U R E T E C H N O L O G I E S
Page 5 and 6: Hopper HardwareF U T U R E T E C H
Page 7 and 8: MicrobenchmarkF U T U R E T E C H N
Page 9 and 10: DMAPP vs. uGNI (FM
Page 11 and 12: Relaxed Ordering and ConcurrencyF U
Page 13 and 14: Communication <str
Page 15 and 16: Communication Para
Page 17 and 18: Relaxed Ordering andCommuni
Page 19 and 20: UPC Shared Memory Ordering Challeng
Page 21 and 22: Cray MPI Method to ExploitGemini Re
Page 23 and 24: MPI Eager 1F U T U R E T E C H N O
Page 25 and 26: MPI Rendezvous 1F U T U R E T E C H
Page 27 and 28: 1648Bwindow size1648BF U T U R E T
Page 29 and 30: window sizwindowwindow sizewindow s
Page 31: ConclusionF U T U R E T E C H N O L

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