Difference between revisions of "Proc"

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This will limit execution of a block to a certain process whose rank is guaranteed to be that specified.<br><br>
 
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.<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.
''Note:'' This is a blocking construct and regardless of arguments involves all processes who will either ignore it or execute the block.
 
  
 
== Example ==
 
== Example ==
  
 
  #include <io>
 
  #include <io>
  proc 0 {
+
  function void main() {
    print("Hello from 0\n");
+
    proc 0 {
};
+
      print("Hello from 0\n");
 +
    };
 
   
 
   
proc 1 {
+
    proc 1 {
    print("hello from 1\n");
+
      print("hello from 1\n");
 +
    };
 
  };
 
  };
  

Latest revision as of 15:44, 15 April 2019

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>
function void main() {
   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.

Since: Version 0.41b