Difference between revisions of "Proc"
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== Syntax == | == Syntax == | ||
| − | proc n | + | proc n<br> |
| + | {<br> | ||
| + | process body<br> | ||
| + | } | ||
| − | where ''n'' is a variable or value | + | where ''n'' is a variable or value known at compile time. |
== Semantics == | == Semantics == | ||
| − | This will limit execution of a block to a certain process | + | This will limit execution of a block to a certain process whose rank is guaranteed to be that specified.<br><br> |
| + | ''Note:'' A variable declared within a proc block and allocated multiple will in fact, by inference, be allocated to the group of processes which contains a single process who's rank is the same as the proc block's. | ||
== Example == | == Example == | ||
| − | proc 0 | + | #include <io> |
| − | + | proc 0 { | |
| − | print | + | print("Hello from 0\n"); |
}; | }; | ||
| − | proc 1 | + | proc 1 { |
| − | + | print("hello from 1\n"); | |
| − | print | ||
}; | }; | ||
| − | The code example will run on two processes, the first will display the message 'Hello from 0'', whilst the second will output the message ''hello from 1''. | + | The code example will run on two processes, the first will display the message ''Hello from 0'', whilst the second will output the message ''hello from 1''. |
[[Category:Parallel]] | [[Category:Parallel]] | ||
Revision as of 13:26, 12 January 2013
Syntax
proc n
{
process body
}
where n is a variable or value known at compile time.
Semantics
This will limit execution of a block to a certain process whose rank is guaranteed to be that specified.
Note: A variable declared within a proc block and allocated multiple will in fact, by inference, be allocated to the group of processes which contains a single process who's rank is the same as the proc block's.
Example
#include <io>
proc 0 {
print("Hello from 0\n");
};
proc 1 {
print("hello from 1\n");
};
The code example will run on two processes, the first will display the message Hello from 0, whilst the second will output the message hello from 1.
