Sync - Revision history

Polas: 6 revisions imported

2019-04-15T15:44:30Z

6 revisions imported

Polas at 13:10, 19 October 2016

2016-10-19T13:10:01Z

Polas at 18:09, 13 January 2013

2013-01-13T18:09:04Z

Polas at 18:07, 13 January 2013

2013-01-13T18:07:20Z

Polas at 13:30, 12 January 2013

2013-01-12T13:30:57Z

Polas: /* Syntax */

2010-01-03T23:52:25Z

‎Syntax

Polas: Created page with '== Syntax == sync name; == Semantics Will synchronise processes where they are needed. For instance, if using the asynchronous communication type, the programmer can synchron…'

2010-01-03T23:52:11Z

Created page with '== Syntax == sync name; == Semantics Will synchronise processes where they are needed. For instance, if using the asynchronous communication type, the programmer can synchron…'

New page

== Syntax ==

sync name;

== Semantics

Will synchronise processes where they are needed. For instance, if using the asynchronous communication type, the programmer can synchronise with a variable name and the keyword will ensure all communications of that variable are up to date. One sided communication (variable sharing MPMD style in a par loop) is also linked into this keyword and it will ensure all communication is completed. Without a variable will synchronise all outstanding variables that need synchronising. If a process has no variables that need syncing then it will ignore this keyword and continue.

[[Category:Parallel]]

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 == Semantics ==
-Will synchronise processes and acts as a blocking call involving all processes. This keyword is linked with default shared memory communication and other types. Omitting the variable name will result in synchronisation for all appropriate constructs. This can be thought of as a barrier, and the value of a variable can only be guaranteed after the appropriate barrier has completed.
+Will complete asynchronous communications and can act as a barrier involving all processes. This keyword is linked with default shared memory (RMA) communication and specific types such as the async communication type. If the programmer specifies an explicit variable name then this synchronisation will just occur for that variable, completing all outstanding communications for that specific variable only (without any global barrier.) In the absence of a variable then synchronisation (completing outstanding communications) shall occur for all variables followed by a global barrier. When asynchronous communication (via default shared memory RMA or explicit types) is involved, the value of the variables can only be guaranteed once a corresponding synchronisation (either with that variable or global, without any variable) has completed.
 ''Since: Version 0.5''
 [[Category:Parallel]]

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 Will synchronise processes and acts as a blocking call involving all processes. This keyword is linked with default shared memory communication and other types. Omitting the variable name will result in synchronisation for all appropriate constructs. This can be thought of as a barrier, and the value of a variable can only be guaranteed after the appropriate barrier has completed.
-''Since:'' Version 0.5
+''Since: Version 0.5''
 [[Category:Parallel]]

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	Will synchronise processes and acts as a blocking call involving all processes. This keyword is linked with default shared memory communication and other types. Omitting the variable name will result in synchronisation for all appropriate constructs. This can be thought of as a barrier, and the value of a variable can only be guaranteed after the appropriate barrier has completed.		Will synchronise processes and acts as a blocking call involving all processes. This keyword is linked with default shared memory communication and other types. Omitting the variable name will result in synchronisation for all appropriate constructs. This can be thought of as a barrier, and the value of a variable can only be guaranteed after the appropriate barrier has completed.
		+
		+	''Since:'' Version 0.5

	[[Category:Parallel]]		[[Category:Parallel]]

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