Using Moldability to Improve the Performance of Supercomputer Jobs
Walfredo Cirne
Broschiertes Buch

Using Moldability to Improve the Performance of Supercomputer Jobs

Automatically choosing job request based on the supercomputer state

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In order to submit a job for execution in most parallel supercomputers, one has to specify the number of processors to be allocated to the job. However, most parallel jobs in production today are moldable, i.e. it can run on a variety of number of processors, although such a number has to be fixed before the job starts. Consequently, users have to decide how many processors to request whenever they submit a moldable job. We here show that the request that submits a moldable job can be automatically selected in a way that often reduces the job s turn-around time. More precisely, we will introdu...