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What is [Open] MPI?

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Jeff Squyres
Jeff Squyres

Description of the Message Passing Interface (MPI) and a brief overview of of the Open MPI open source software project.

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Slidecast: What is [Open] MPI? Jeff Squyres May 2008
What is MPI? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MPI Forum ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is MPI? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MPI High-Level View User application MPI API Operating System
What is MPI? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MPI Implementations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Why So Many MPI’s? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Target Audience ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Parallel Computing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MPI Abstracts the Network ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MPI High-Level View User application MPI API Operating System
Example: 4 Servers Server User application MPI API Operating System Server User application MPI API Operating System Server User application MPI API Operating System Server User application MPI API Operating System Network
Example: 2 Servers Server User application MPI API Operating System User application MPI API Server User application MPI API User application MPI API Operating System Network
Example: 1 Server Server User application MPI API Operating System User application MPI API User application MPI API User application MPI API
Runtime ,[object Object],[object Object],[object Object],[object Object]
Trivial MPI Application ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Trivial MPI Application Process 0 to=1 from=3 Process 2 to=3 from=1 Process 1 to=2 from=0 Process 3 to=0 from=2 MPI_Send(…) MPI_Send(…) MPI_Send(…) MPI_Send(…) MPI_Recv(…) MPI_Recv(…) MPI_Recv(…) MPI_Recv(…)
Open MPI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Research / academia Industry
Open MPI ,[object Object],[object Object],[object Object],[object Object],[object Object]
Open MPI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Plugin High-Level View User application MPI API Modular Component Architecture (MCA) Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … …
Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 

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What is [Open] MPI?

  • 1. Slidecast: What is [Open] MPI? Jeff Squyres May 2008
  • 2.
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  • 5. MPI High-Level View User application MPI API Operating System
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  • 12. MPI High-Level View User application MPI API Operating System
  • 13. Example: 4 Servers Server User application MPI API Operating System Server User application MPI API Operating System Server User application MPI API Operating System Server User application MPI API Operating System Network
  • 14. Example: 2 Servers Server User application MPI API Operating System User application MPI API Server User application MPI API User application MPI API Operating System Network
  • 15. Example: 1 Server Server User application MPI API Operating System User application MPI API User application MPI API User application MPI API
  • 16.
  • 17.
  • 18. Trivial MPI Application Process 0 to=1 from=3 Process 2 to=3 from=1 Process 1 to=2 from=0 Process 3 to=0 from=2 MPI_Send(…) MPI_Send(…) MPI_Send(…) MPI_Send(…) MPI_Recv(…) MPI_Recv(…) MPI_Recv(…) MPI_Recv(…)
  • 19.
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  • 22. Plugin High-Level View User application MPI API Modular Component Architecture (MCA) Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … Framework Comp. Comp. Comp. … …
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  • 24.