Hoffman2:Interactive Sessions - Revision history

Hwang: /* Request node with specific processor architect */

2021-12-03T18:47:49Z

Request node with specific processor architect

← Older revision		Revision as of 18:47, 3 December 2021
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	You can choose processor architect, for example request a work node with intel chip only		You can choose processor architect, for example request a work node with intel chip only

	qrsh -l arch=intel*,h_rt=4:00:00,h_data=8G		$ qrsh -l arch=intel*,h_rt=4:00:00,h_data=8G

	<!--==Now!==		<!--==Now!==

2021-12-03T18:47:36Z

Request node with specific processor architect

← Older revision		Revision as of 18:47, 3 December 2021
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	You can choose processor architect, for example request a work node with intel chip only		You can choose processor architect, for example request a work node with intel chip only

	qrsh -l arch=intel*,h_rt=4:00:00,h_data=8G		qrsh -l arch=intel*,h_rt=4:00:00,h_data=8G

	<!--==Now!==		<!--==Now!==

2021-12-03T18:47:07Z

← Older revision		Revision as of 18:47, 3 December 2021
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	This will reserve 2 processor cores for the interactive mode session. Be aware that the memory reserved here will be 2 x 4G = 8G.		This will reserve 2 processor cores for the interactive mode session. Be aware that the memory reserved here will be 2 x 4G = 8G.

			==Request node with specific processor architect==

			You can choose processor architect, for example request a work node with intel chip only

			qrsh -l arch=intel*,h_rt=4:00:00,h_data=8G

	<!--==Now!==		<!--==Now!==

2019-12-18T18:20:09Z

Basic Command

← Older revision		Revision as of 18:20, 18 December 2019
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	==Basic Command==		==Basic Command==
	To get one, ~~you need to~~ use the <code>qrsh</code> command.		To get one, just use the <code>qrsh</code> command.

	For example		For example
	$ qrsh		$ qrsh
	will try to get you an interactive node.		will try to get you an interactive node with 1 core 1 GB memory, for two hours.

	~~Because you didn't specify a time limit this session will only last~~ two hours ~~after which you will be kicked off of the interactive node back to a login node.~~

	~~And because you didn't specify a memory limit, the default is 1GB~~.

	If you successfully get a node, your prompt will change from something like		If you successfully get a node, your prompt will change from something like

2019-10-08T21:47:44Z

More Memory

← Older revision		Revision as of 21:47, 8 October 2019
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	$ qrsh -l h_rt=48:00:00,highp,h_data=4G		$ qrsh -l h_rt=48:00:00,highp,h_data=4G
	specify memory usage in highp		specify memory usage with highp

	==More computing power==		==More computing power==

2019-10-08T21:47:31Z

More Memory

← Older revision		Revision as of 21:47, 8 October 2019
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	$ qrsh -l h_rt=48:00:00,highp,h_data=4G		$ qrsh -l h_rt=48:00:00,highp,h_data=4G
			specify memory usage in highp

	==More computing power==		==More computing power==

2019-10-08T21:46:30Z

← Older revision		Revision as of 21:46, 8 October 2019
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	$ qrsh -l h_rt=4:00:00,h_data=4G		$ qrsh -l h_rt=4:00:00,h_data=4G
	will try securing an interactive node for four hours with four gigabytes of RAM, but if no such node is available the cluster will deny your request.		will try securing an interactive node for four hours with four gigabytes of RAM, but if no such node is available the cluster will deny your request.

			$ qrsh -l h_rt=48:00:00,highp,h_data=4G


	==More computing power==		==More computing power==

2019-10-08T21:29:57Z

More computing power

← Older revision		Revision as of 21:29, 8 October 2019
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	This will reserve 2 processor cores for the interactive mode session. Be aware that the memory reserved here will be 2 x 4G = 8G.		This will reserve 2 processor cores for the interactive mode session. Be aware that the memory reserved here will be 2 x 4G = 8G.
	~~(Be careful not to reserve too much memory by mistake, such as h_data=24G -pe shared 4, this will request 96G memory, which exceed many nodes' memory capacity)~~

	<!--==Now!==		<!--==Now!==

2019-10-08T21:29:40Z

More computing power

← Older revision		Revision as of 21:29, 8 October 2019
Line 55:		Line 55:

	This will reserve 2 processor cores for the interactive mode session. Be aware that the memory reserved here will be 2 x 4G = 8G.		This will reserve 2 processor cores for the interactive mode session. Be aware that the memory reserved here will be 2 x 4G = 8G.
			(Be careful not to reserve too much memory by mistake, such as h_data=24G -pe shared 4, this will request 96G memory, which exceed many nodes' memory capacity)

	<!--==Now!==		<!--==Now!==

2019-10-08T20:56:00Z

More computing power

← Older revision		Revision as of 20:56, 8 October 2019
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	$ qrsh -l h_rt=4:00:00,h_data=4G -pe shared 2		$ qrsh -l h_rt=4:00:00,h_data=4G -pe shared 2

	This will reserve 2 processor cores for the interactive mode session. Be ~~careful~~ that the memory reserved here will be 2 x 4G = 8G.		This will reserve 2 processor cores for the interactive mode session. Be aware that the memory reserved here will be 2 x 4G = 8G.

	<!--==Now!==		<!--==Now!==