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DTSTART;TZID=America/Chicago:20211115T120000
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UID:submissions.supercomputing.org_SC21_sess347_ws_scsc105@linklings.com
SUMMARY:MANA-2.0:  A Future-Proof Design for Transparent Checkpointing of 
 MPI at Scale
DESCRIPTION:Workshop\n\nMANA-2.0:  A Future-Proof Design for Transparent C
 heckpointing of MPI at Scale\n\nXu, Zhao, Garg, Khetawat, Hartman-Baker...
 \n\nMANA-2.0 is a scalable, future-proof design for transparent checkpoint
 ing of MPI-based computations. Its network transparency ("network-agnostic
 '') feature ensures that MANA-2.0 will provide a viable, efficient mechani
 sm for transparently checkpointing MPI applications on current and future 
 supercomputers. MANA-2.0 is an enhancement of previous work, the original 
 MANA, which interposes MPI calls, and is a work in progress intended for p
 roduction deployment. MANA-2.0 implements a series of new algorithms and f
 eatures that improve MANA’s scalability and reliability, enabling transpar
 ent checkpoint-restart over thousands of MPI processes.  MANA-2.0 is being
  tested on today's Cori supercomputer at NERSC using Cray MPICH library ov
 er the Cray GNI network, but it is designed to work over any standard MPI 
 running over an arbitrary network.\n\nTwo widely-used HPC applications wer
 e selected to demonstrate the enhanced features of MANA-2.0: GROMACS, a mo
 lecular dynamics simulation code with frequent point-to-point communicatio
 n, and VASP, a materials science code with frequent MPI collective communi
 cation.  Perhaps the most important lesson to be learned from MANA-2.0 is 
 a series of algorithms and data structures for library-based transformatio
 ns that enable MPI-based computations over MANA-2.0 to reliably survive th
 e checkpoint-restart transition.\n\nTag: Parallel Programming Languages an
 d Models, Reliability and Resiliency\n\nRegistration Category: Workshop Re
 g Pass
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