[Swift-devel] java installations on Beagle

[Jonathan Monette]

Its always best to use sun java but IBMs java works fine. The only issue we have with IBMs java is when submitting jobs to beagle remotely with automatic coasters. In that scenario an eof exception is thrown. 

On May 1, 2012, at 12:30, Michael Wilde <wilde at mcs.anl.gov> wrote:

> Hi Lorenzo,
> 
> Just a few notes re your java emails (sorry, we are all swamped right now with multiple colliding deadlines).
> 
> - should never need to set JAVA_HOME manually; in fact is usually dangerous to do set. Java will set it to the dir containing the command you run.  Just get the right java bin/ in your path).
> 
> - we are still experimenting with which Java works best on Beagle, so I am cc'ing this to swift-devel for comments. I recall that Ketan found some issues with the default IBM Java that were remedied by using a Sun Java.
> 
> - *usually* its best to use the latest Sun Java available.
> 
> - I am assuming for Beagle (and most modern machines) we aways want to use a 64 bit Java
> 
> Mike
> 
> 
> ----- Original Message -----
>> From: "Lorenzo Pesce" <lpesce at uchicago.edu>
>> To: "Michael Wilde" <wilde at mcs.anl.gov>
>> Sent: Tuesday, May 1, 2012 10:30:18 AM
>> Subject: java installations on Beagle
>> Mike,
>> 
>> No rush here. It looks like there is some mess in the java
>> installations on Beagle. For one there are a bunch:
>> lpesce at login5:~> module avail java
>> 
>> ------------------------------- /opt/modulefiles
>> -------------------------------
>> java/jdk1.6.0_20 java/jdk1.6.0_24(default)
>> lpesce at login5:~> module avail sun-java
>> 
>> --------------------------- /soft/modulefiles/tools
>> ----------------------------
>> sun-java/jdk1.7.0_02(default)
>> 
>> 
>> I thought that the module called "java" was the sun java. Now I a
>> utterly perplexed.
>> 
>> 
>> Moreover, $JAVA_HOME doesn't seem to be affected by which java is
>> loaded, which seems dubious to me.
>> 
>> I am going to force a new definition of JAVA_HOME *within* the ant
>> module when I load sun-java
> 
> -- 
> Michael Wilde
> Computation Institute, University of Chicago
> Mathematics and Computer Science Division
> Argonne National Laboratory
> 
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