Hi Xing,
You can use the environment variable X10_NTHREADS to specify the number of
threads to use.
export X10_NTHREADS=4
hope this helps.
-
ganesh
In the beginning there was nothing. God said, 'Let there be light!' And there
was light. There was still nothing, but you could see it a whole lot better.
- Ellen DeGeneres
--- On Sat, 10/4/10, Liu, Xing <xing....@gatech.edu> wrote:
> From: Liu, Xing <xing....@gatech.edu>
> Subject: Re: [X10-users] The use of "!"
> To: "Mailing list for users of the X10 programming language"
> <x10-users@lists.sourceforge.net>
> Date: Saturday, 10 April, 2010, 7:57 AM
> The code piece below is from X10
> samples.
>
> For this case, how can I specify the number of threads to
> run it?
>
>
> public static def run(a:Array[int](1), b:
> Rail[int]!) {
> finish
> foreach((i) in
> a.region) {
>
> Console.OUT.println(here.id);
>
> val bin = a(i)% b.length;
>
> atomic b(bin)++;
> }
>
> Regards,
>
> Xing
>
> ----- Original Message -----
> From: "Vijay Saraswat" <vi...@saraswat.org>
> To: "Mailing list for users of the X10 programming
> language" <x10-users@lists.sourceforge.net>
> Sent: Friday, April 9, 2010 7:31:18 AM GMT -05:00 US/Canada
> Eastern
> Subject: Re: [X10-users] The use of "!"
>
> Liu, Xing wrote:
> > Hi,
> >
> >
> > Is there anyone could tell me the meaning of "!" in
> the code below? thanks
> >
> > public static def run(a:Array[int](1)!, b: Rail[int]!)
> {
> > ...
> > }
> >
> Yes, ! is a place clause.
>
> Specifically, this declaration should be read as saying:
> run requires an
> argument a, which must be an Array of int of rank 1 that is
> local (i.e.
> a.home==here), and b must be a Rail of int that is local
> (b.home==here).
>
> Said differently, the type T! is the type T
> {self.home==this.home} in
> case T does not occur in exectuable code (e.g. is the type
> in a field
> declaration, or occurs in an implements clause) and the
> type
> T{self.home==here} otherwise, i.e. in case T occurs in the
> declaration
> or body of methods or constructors, or in the body of
> initializers.
>
> If you declared the method as
>
> public static def run(a:Array[int](1), b: Rail[int]) {
> ...
> }
>
> then a and b are not required to be local. In such a case
> you cannot
> invoke methods on a and b that are not marked global.
>
> Note that in X10 only methods not marked global are
> permitted to change
> the mutable state of the object. Therefore the place type
> permits you to
> tell the compiler that the object involved was created in
> the current
> place, and hence it is ok to invoke methods on it that are
> not marked
> global.
>
>
> Best,
> Vijay
>
>
>
> ------------------------------------------------------------------------------
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