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Components and interfaces of a process management system for parallel programs.

DE2001775263

Publication Date	2001
Personal Author	Butler, R.; Gropp, W.; Lusk, E.
Page Count	12
Abstract	Parallel jobs are different from sequential jobs and require a different type of process management. We present here a process management system for parallel programs such as those written using MPI. A primary goal of the system, which we call MPD (for multipurpose daemon), is to be scalable. By this we mean that startup of interactive parallel jobs comprising thousands of processes is quick, that signals can be quickly delivered to processes, and that stdin, stdout, and stderr are managed intuitively. Our primary target is parallel machines made up of clusters of SMPs, but the system is also useful in more tightly integrated environments. We describe how MPD enables much faster startup and better runtime management of parallel jobs. We show how close control of stdio can support the easy implementation of a number of convenient system utilities, even a parallel debugger. We describe a simple but general interface that can be used to separate any process manager from a parallel library, which we use to keep MPD separate from MPICH.
Keywords	Management information systems Parallel processing Implementation Computer codes Task scheduling
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	62A - Computer Hardware 62B - Computer Software 70C - Management Information Systems
Corporate Authors	Argonne National Lab., IL.; Department of Energy, Washington, DC.
Supplemental Notes	bad image file
Document Type	Conference Proceedings
NTIS Issue Number	200124
Contract Number	W-31109-ENG-38

Components and interfaces of a process management system for parallel programs.

Components and interfaces of a process management system for parallel programs.
DE2001775263

Publication Date	2001
Personal Author	Butler, R.; Gropp, W.; Lusk, E.
Page Count	12
Abstract	Parallel jobs are different from sequential jobs and require a different type of process management. We present here a process management system for parallel programs such as those written using MPI. A primary goal of the system, which we call MPD (for multipurpose daemon), is to be scalable. By this we mean that startup of interactive parallel jobs comprising thousands of processes is quick, that signals can be quickly delivered to processes, and that stdin, stdout, and stderr are managed intuitively. Our primary target is parallel machines made up of clusters of SMPs, but the system is also useful in more tightly integrated environments. We describe how MPD enables much faster startup and better runtime management of parallel jobs. We show how close control of stdio can support the easy implementation of a number of convenient system utilities, even a parallel debugger. We describe a simple but general interface that can be used to separate any process manager from a parallel library, which we use to keep MPD separate from MPICH.
Keywords	Management information systems Parallel processing Implementation Computer codes Task scheduling
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	62A - Computer Hardware 62B - Computer Software 70C - Management Information Systems
Corporate Authors	Argonne National Lab., IL.; Department of Energy, Washington, DC.
Supplemental Notes	bad image file
Document Type	Conference Proceedings
NTIS Issue Number	200124
Contract Number	W-31109-ENG-38