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32bit JDK on 64bit Windows OS

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hyllplan
Honored Contributor.

32bit JDK on 64bit Windows OS

Hi,
We are about to build a new platform. We are using windows today and will continue to do so but we will probably start using a 64bit windows OS to be able to allocate more RAM efficiently. What I have seen in the comp matrix is that 64bit JAva aint supported so we need to run 32bit Java on 64bit OS. Any downside with this configuraton? Will we be able to move our PPM instance without any unexpected trouble?
Johan
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hyllplan
Honored Contributor.

Re: 32bit JDK on 64bit Windows OS

I must add one detail; above is regarding the application server. Were replacing the application server.
Sascha Mohr
Acclaimed Contributor.
Solution

Re: 32bit JDK on 64bit Windows OS

That's no problem. The only downside will be that the JVMs still have a memory limit of 1.x GB each. But as Windows now can utilise more RAM you can have more JVMs in parallel. Let's say you have a machine with 8GB of memory and 8 logical CPU cores, you could probably run 3-4 JVMs leading to an 3-4 node PPM app cluster.
hyllplan
Honored Contributor.

Re: 32bit JDK on 64bit Windows OS

Thanks, thats the info I needed