When I don't define a <grid> element in my site catalog I get this:

2011.05.03 15:20:15.685 PDT: [ERROR] Could not find a jobmanager at site (TestCluster) for universe compute
2011.05.03 15:20:15.686 PDT: [FATAL ERROR]
[1] java.lang.RuntimeException: Could not find a jobmanager at site (TestCluster) for universe compute at edu.isi.pegasus.planner.refiner.InterPoolEngine.getJobManager(InterPoolEngine.java:760)
2011.05.03 15:20:15.686 PDT: [WARNING] Non-zero exit-code 1

This is bad because I don't have a jobmanager for this site at all.

Here is my site catalog:

<?xml version="1.0" encoding="UTF-8"?>
<sitecatalog xmlns="http://pegasus.isi.edu/schema/sitecatalog" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://pegasus.isi.edu/schema/sitecatalog http://pegasus.isi.edu/schema/sc-3.0.xsd" version="3.0">
<site handle="local" arch="x86" os="LINUX">
<head-fs>
<scratch>
<shared>
<file-server protocol="file" url="file://" mount-point="/submit/scptest/outputs"/>
<internal-mount-point mount-point="/submit/scptest/outputs" free-size="100G" total-size="30G"/>
</shared>
</scratch>
<storage>
<shared>
<file-server protocol="file" url="file://" mount-point="/submit/scptest/outputs"/>
<internal-mount-point mount-point="/submit/scptest/outputs" free-size="100G" total-size="30G"/>
</shared>
</storage>
</head-fs>
<profile namespace="env" key="PEGASUS_HOME" >/usr/local/pegasus/default</profile>
</site>
<site handle="TestCluster" arch="x86_64" os="LINUX">
<grid type="gt2" contact="example.com/jobmanager-fork" scheduler="unknown" jobtype="compute"/>
<head-fs>
<scratch>
<shared>
<file-server protocol="scp" url="scp://ec2-50-17-106-165.compute-1.amazonaws.com" mount-point="/mnt"/>
<internal-mount-point mount-point="/mnt"/>
</shared>
</scratch>
<storage>
<shared>
<file-server protocol="scp" url="scp://ec2-50-17-106-165.compute-1.amazonaws.com" mount-point="/mnt"/>
<internal-mount-point mount-point="/mnt"/>
</shared>
</storage>
</head-fs>
<profile namespace="env" key="PEGASUS_HOME" >/usr/local/pegasus/default</profile>
<profile namespace="pegasus" key="style">glidein</profile>
<profile namespace="condor" key="universe">vanilla</profile>
<profile namespace="condor" key="requirements">(Arch==Arch)&&(Disk!=0)&&(Memory!=0)&&(OpSys==OpSys)&&(FileSystemDomain!="")</profile>
</site>
</sitecatalog>