Differences

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--- compute_portal [2018/10/01 19:38]
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+++ compute_portal [2020/08/27 15:07]
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-====== The portal cluster ======
+==== The portal cluster ====
-The ''%%portal%%'' cluster is a general purpose cluster of four servers whose logins are load balanced among the four servers. Upon an 'ssh' to ''%%portal%%'', your login will be placed on the least loaded of the cluster's servers (portal[01,02,03,04]). Each system is running CentOS Linux 7, has 128GB of memory, 16 virtual cores, and ~200GB of scratch (/localtmp) space. The portal will eventually replace the old "power*" nodes which are nearing retirement age.
+The ''%%portal%%'' cluster is a general purpose cluster of servers whose logins are load balanced among the servers. Upon an 'ssh' to ''%%portal.cs.virginia.edu%%'', your login will be placed on the least loaded of the cluster's servers (portal[01,02, etc.]). Each system is running CentOS Linux and has plenty of memory, CPU cores, and scratch (/localtmp) space.
+You can use portal to perform many interactive tasks, like editing files, compiling code, testing code, etc. If you intend to run long, compute intensive programs, you should use other [[compute_resources|Computing Resources]] which are available for general login or through the job scheduler (see [[compute_slurm|Scheduling a Job using the SLURM job scheduler]]).
+You must use your CS userid (identical to your UVA userid) and password to 'ssh' to portal. For example:
+''%%ssh -l abc1de portal.cs.virginia.edu%%''. Alternatively,
+''%%ssh abc1de@portal.cs.virginia.edu%%''
+(Note that if you are opening a terminal on your Mac or PC, your username on the Mac or PC may be different from your CS domain userid. So be sure to include your CS/UVA userid on the 'ssh' command line).
+Most popular software is already available on portal, so you do not need to install it. See: [[linux_environment_modules|Software Modules]]