In particular, the "cloud" computing that I'm referring to is:

I'm going to get some Linux servers. Then I have pretty big computing tasks to do every day. So my goal is to be able to run some shell command to request an "instance" (ie, if a server has 4 CPU, then the computing software will configure that server to have 4 instances, assuming all my tasks are single thread). Ideally, then I can run the following command:

./addjobs somebatchfile

where somebatch file contains one command per line

./removejobs all

./listalljobs

(ie, everything is done in shell. And the "computing software" can return me the hostname that's available in some environment variable, etc)

And that's all I needed.

I run into OpenStack.. but it seems too complicated for this purpose (ie, it does all the Imagine sharing stuff, etc).. All I want, is something SIMPLE that manages the Linux boxes for me and I'm just going to run shell commands on them...

Is there such open source software?

Thanks,