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1.2 Current Parallel Programming Paradigms - page 29 / 33

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Chapter 6

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Miscellany

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6.1

New Attributes

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The FT-MPI specification introduces some new attributes, reflecting the ex- tended functionality of this specifications. These attributes can be retrieved for the default communicators MPI COMM WORLD and MPI COMM SELF, and can not be altered by the user.

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FTMPI RECOVERY MODE: This attribute returns the current re- covery mode.

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FTMPI COMM MODE: This attribute returns the current communi- cator mode.

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FTMPI MSG MODE: This attribute returns the current message mode.

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FTMPI COLL MODE: This attribute returns the current collective communication mode.

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FTMPI NUM FAILED PROCS: This attribute returns the number of failed processes since the last recovery operation.

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FTMPI ERROR FAILURE: This attribute returns an error code. Us- ing MPI Error string and the error code provided in the attribute, the user can retrieve a string containing the ranks of the failed processes in MPI COMM WORLD. As with the previous attribute, the values provided by these attributes are always replaced by a new one, every time the recovery function is called.

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