When OSH code gets generated?
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When OSH code gets generated?
When OSH code gets generated, is it after compilation or execution of parallel job?
Thanks with regards,
videsh.
videsh.
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ray.wurlod
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Compiling a parallel job generates osh and, possibly C++ source code that is compiled and linked and callable at run time.
When the job starts the generated OSH and the currently selected configuration file are used as input to a set of execution instructions called the "score", which contains the operators that are actually executed.
Due to optimization and other factors the score may not have a one-to-one correspondence with the generated osh. Indeed, it rarely does, except in the very simplest of job designs.
If you set APT_STARTUP_STATUS to True you will get events logged that show the score being distributed to the various processing nodes. APT_DUMP_SCORE or DS_PX_DEBUG will get the score dumped in human-readable form.
When the job starts the generated OSH and the currently selected configuration file are used as input to a set of execution instructions called the "score", which contains the operators that are actually executed.
Due to optimization and other factors the score may not have a one-to-one correspondence with the generated osh. Indeed, it rarely does, except in the very simplest of job designs.
If you set APT_STARTUP_STATUS to True you will get events logged that show the score being distributed to the various processing nodes. APT_DUMP_SCORE or DS_PX_DEBUG will get the score dumped in human-readable form.
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Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.
Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.