Hi,
I found that I get a huge slowdown when I use multiple nodes for mpirun with
x10 application. Here are my simple code :
var count:int = 0;
while(true)
{
var t:Long = Timer.milliTime();
for(var i:int = 0; i < 10000000; i++);
Console.OUT.println("count : " + count + ",
elapsed time = " + (Timer.milliTime() - t));
count++;
}
And here are the results :
hok...@hokira-desktop:~/ext/Dropbox/Projects/x10/x10hello$ mpirun -n 1 Main
count : 0, elapsed time = 31
count : 1, elapsed time = 21
count : 2, elapsed time = 22
count : 3, elapsed time = 22
count : 4, elapsed time = 22
hok...@hokira-desktop:~/ext/Dropbox/Projects/x10/x10hello$ mpirun -n 8 Main
count : 0, elapsed time = 51
count : 1, elapsed time = 55
count : 2, elapsed time = 45
count : 3, elapsed time = 55
count : 4, elapsed time = 45
I can see the X10 runtime code but I want to make sure if I did some mistake
while building or running the application.
Also, I saw CPU utilizations are 100% even when only one place is actually
running some work. Is this normal behavior of X10 application?
Thanks,
Kirak
------------------------------------------------------------------------------
Lotusphere 2011
Register now for Lotusphere 2011 and learn how
to connect the dots, take your collaborative environment
to the next level, and enter the era of Social Business.
http://p.sf.net/sfu/lotusphere-d2d
_______________________________________________
X10-users mailing list
X10-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/x10-users
