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<div>Hi Sergio:</div>
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<div>a -- yes!</div>
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MASTER_INSTANCE_TYPE = c1.medium</div>
<div style="color: rgb(25, 25, 25); font-family: Georgia; font-size: 18px; line-height: 23px; text-align: left; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; ">
MASTER_IMAGE_ID = ami-XXXXXX</div>
<div style="color: rgb(25, 25, 25); font-family: Georgia; font-size: 18px; line-height: 23px; text-align: left; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; ">
NODE_IMAGE_ID = ami-XXXXXX</div>
<div style="color: rgb(25, 25, 25); font-family: Georgia; font-size: 18px; line-height: 23px; text-align: left; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; ">
NODE_INSTANCE_TYPE = cr1.8xlarge</div>
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<div>b -- in config do:</div>
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<div>In the [cluster NAME] section:</div>
<div><span style="color: rgb(25, 25, 25); font-family: Georgia; font-size: 18px; line-height: 23px; text-align: left; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; ">DISABLE_QUEUE=True</span></div>
<div><span style="color: rgb(25, 25, 25); font-family: Georgia; font-size: 18px; line-height: 23px; text-align: left; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; ">PLUGINS
= sge</span></div>
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Then define your sge plugin with:</div>
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<div style="color: rgb(25, 25, 25); font-family: Georgia; font-size: 18px; line-height: 23px; text-align: left; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; ">
[plugin sge]</div>
<div style="color: rgb(25, 25, 25); font-family: Georgia; font-size: 18px; line-height: 23px; text-align: left; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; ">
setup_class = starcluster.plugins.sge.SGEPlugin</div>
<div style="color: rgb(25, 25, 25); font-family: Georgia; font-size: 18px; line-height: 23px; text-align: left; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; ">
master_is_exec_host = False</div>
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You can also force the master to be a spot instance by using 'starcluster start --force-spot-master', which can save serious cash (90%).</div>
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<div>-Hugh<br>
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<br>
On Jan 29, 2013, at 9:02 AM, "Sergio Mafra" <<a href="mailto:sergiohmafra@gmail.com">sergiohmafra@gmail.com</a>> wrote:<br>
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<div dir="ltr">Hi fellows,
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<div style="">If we are supposed to have the instances running for a long time, LoadBlancer can help us a lot, turning on and off when is needed.</div>
<div style="">I wonder if we can make this more smarter and cheaper, launching the master node as a m1.small instance, taking care only for communication and queue managemente, leaving the heavier job for the compute nodes, that can take advantage of cluster
type instance and placement groups. </div>
<div style="">So my question is:</div>
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<div style="">a) Can we have a cluster with differente instance types - Master and Compute nodes?</div>
<div style="">b) How to exclude Master node from being a computacional node in the job queue?</div>
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<div style="">All the best,</div>
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<div style="">Sérgio</div>
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