<div dir="ltr">Hello,<div><br></div><div>Does anybody with real experience working with clusters based on mixed instance types?</div><div style>I need some help on this;</div><div style><br></div><div style>I´m trying to run a program on a simple scenario.</div>
<div style><br></div><div style>1. One Master node wtih the smallest instance type needed only to control the queue.</div><div style>2. Several Compute nodes with power to crash numbers.</div><div style><br></div><div style>
When I run the cluster with the same type of instances, it works fine.</div><div style>If I change the master, reducing it to a m1.small... it stops working..</div><div style><br></div><div style>If I configure the cluster to put the Master to rest, the queue doesn´t work at all</div>
<div style><br></div><div style>(Oh yes.. I did all the stuff on config file..well, I think I did... :)</div><div style><div style><br></div><div style><div>[cluster HybridUbuntu]</div><div>KEYNAME = MasterNode</div><div>
CLUSTER_SIZE = 3</div><div>CLUSTER_USER = sgeadmin</div><div>CLUSTER_SHELL = bash</div><div>MASTER_IMAGE_ID = ami-1d069174</div><div>MASTER_INSTANCE_TYPE = t1.micro</div><div>NODE_IMAGE_ID = ami-411d8a28</div><div>NODE_INSTANCE_TYPE = cc1.4xlarge</div>
<div>PLUGINS = mpich2</div><div>DISABLE_QUEUE = True</div><div>PLUGINS = sge</div><div>VOLUMES = newave</div><div><br></div><div><div>#############################</div><div>## Configuring EBS Volumes ##</div><div>#############################</div>
<div>[volume newave]</div><div>VOLUME_ID = vol-a74259dc</div><div>MOUNT_PATH = /home</div><div><br></div><div>##############</div><div>## Plug-ins ##</div><div>##############</div><div>[plugin mpich2]</div><div>SETUP_CLASS = starcluster.plugins.mpich2.MPICH2Setup</div>
<div><br></div><div>[plugin sge]</div><div>SETUP_CLASS = starcluster.plugins.sge.SGEPlugin</div><div>MASTER_IS_EXEC_HOST = False</div></div><div><br></div><div style>What I doing wrong? Any ideas?</div><div style><br></div>
<div style>All the best,</div><div style><br></div><div style>Sergio</div></div></div></div>