Hello,
I'm sorry for my late answer. Finally I've written a test program like this
import x10.io.Console;
class HelloWholeWorld {
public static def main(args:Rail[String]):void {
finish for (p in Place.places()) {
at (p) async Console.OUT.println(here+" says hello: "+
Runtime.getName());
}
Console.OUT.println("The End");
}
}
The following occurs
[console]$ export X10_NPLACES=2
[console]$ export X10_HOSTLIST="name1,name2"
[console]$ ./HelloWholeWorld
Place(0) says hello: 28901@name1
The End
Place(1) says
hello: 25821@name2
[console]$
If I enter invalid names I don't get any output. "The End" neither. So
it seems the program doesn't even start if it gets wrong input. If
this is correct I would be content with this. Is there a way to avoid
all these spaces?
One simple question since I'm unexperienced with X10 yet: How to
synchronize the places, so that "The End" is always printed at last?
Thank you very much for your help.
bye
Zitat von WangChen <wang...@163.com>:
> Hi, Michael
> I’m reading the doc these days and i found an api that might be
> useful to you.
> In the Runtime class:
> getName
>
> public static String getName()
> Get a string that identifies the X10 execution environment of this
> place. The string is undefined but should be helpful for debugging,
> typically containing the pid and hostname. On java it is equivalent
> to
> java.lang.management.ManagementFactory.getRuntimeMXBean().getName().
>
>
>
>
> 在 2014年8月27日，下午11:33，Michael Dietrich
> <michael.dietr...@s2010.tu-chemnitz.de> 写道：
>
>> Hello,
>>
>> I am using X10 as a part of my bachelor's thesis about high
>> performance programming languages (so maybe some more questions may be
>> asked later :-) ).
>>
>> My first questions are about using several places:
>>
>> * If I set X10_NPLACES=n with having less than n hosts, the places
>> will be distributed among the existing hosts, right?
>>
>> * Is there a possibility to find out which place is located on which
>> host? In Chapel you have here.name.
>>
>> * Should X10_NTHREADS be equal to the amount of cores within a host?
>>
>> * Let there be X10_HOSTLIST="A,B,foo". A and B are the hosts I want to
>> use while foo is a randomly chosen set of letters for simulating a
>> mistyped or currently inactive computer.
>> If I start a program with this parameter I don't get an error message
>> though there is something wrong. If I do isDead() on every place every
>> of them returns false.
>> Did I maybe forget to set something so it doesn't distribute the
>> places to other computers or does X10 ignore host names which cannot
>> be reached?
>>
>> Thank you very much
>> bye
>>
>>
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