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DISTRIBUTE and REDISTRIBUTE Directives

XBNF distribute-directive -to -rule to to is DISTRIBUTE distributee dist-directive-stuff

redistribute-directive -to -rule to to is REDISTRIBUTE distributee dist-directive-stuff -to or REDISTRIBUTE dist-attribute-stuff :: distributee-list

dist-directive-stuff -to -rule to to is dist-format-clause [ dist-onto-clause ]

dist-attribute-stuff -to -rule to to is dist-directive-stuff -to or dist-onto-clause

distributee -to -rule to to is object-name -to or template-name

dist-format-clause -to -rule to to is ( dist-format-list ) -to or * ( dist-format-list ) -to or *

dist-format -to -rule to to is BLOCK [ ( int-expr ) ] -to or CYCLIC [ ( int-expr ) ] -to or *

dist-onto-clause -to -rule to to is ONTO dist-target

dist-target -to -rule to to is processors-name -to or * processors-name -to or * XBNF

• An object-name mentioned as a distributee must be a simple name and not a subobject designator.

• An object-name mentioned as a distributee may not appear as an alignee.

• An object-name mentioned as a distributee may not have the POINTER attribute.

• A distributee that appears in a REDISTRIBUTE directive must have the DYNAMIC attribute (see Section ).

• If a dist-format-list is specified, its length must equal the rank of each distributee.

• If both a dist-format-list and a processors-name appear, the number of elements of the dist-format-list that are not ``*'' must equal the rank of the named processor arrangement.

• If a processors-name appears but not a dist-format-list, the rank of each distributee must equal the rank of the named processor arrangement.

• If either the dist-format-clause or the dist-target in a DISTRIBUTE directive begins with ``*'' then every distributee must be a dummy argument.

• Neither the dist-format-clause nor the dist-target in a REDISTRIBUTE may begin with ``*''.

• Any int-expr appearing in a dist-format of a DISTRIBUTE directive must be a specification-expr.

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