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How does Tufts participate in XsedeXSEDE? Currently RGTS (Research and Geospatial Technology Services) aids in dissemination of information regarding available Xsede resources, how to apply for allocations and basic information regarding access, usage and file transfer. As part of Tufts connection to Internet2 we have high speed access to systems on Xsede.
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- Local: You can open a ticket at https://it.tufts.edu/ or email it@tufts.edu Please specifically mention Xsede so the ticket gets routed properly to RGTS (Research and Geospatial Technology Services) It is very important that we know locally who is accessing Xsede and what questions you have.
- XsedeXSEDE: For escalation to the Xsede XSEDE helpdesk you can go to https://www.xsede.org/web/xup/help-desk or email help@xsede.org both of which will open a ticket. You can also reach the Xsede XSEDE helpdesk 24/7 by telephone at 1-866-907-2383
How to access resources? Check out the Xsede user guides for each system in question https://www.xsede.org/web/guest/user-guides Generally speaking most Xsede XSEDE systems are configured in a similar fashion and are accessed via ssh like other HPC systems around the world.
How to copy files? Similar to using ssh to login, you can use sftp, scp, and rsync over ssh to copy files to a system on XsedeXSEDE. If your files are on the Tufts compute cluster they will copy over to Xsede XSEDE much faster than from a typical desktop, workstation or laptop on wifi or a wired 1GB network drop. Please feel free to contact Tufts staff to make sure your file copy procedures are as efficient as possible.
- Is Globus supported at Tufts as a file transfer mechanism? Currently no though this is being examined. Globus is based upon GridFTP and allows for higher speed transfer, via multiple data paths, than typical tools such as scp, sftp, and rsync. This is of particular importance as files and datasets get larger. Globus also allows for disconnected transfer and restart of large file copies.
- Is Aspera supported at Tufts as a file transfer mechanism? As far as we know Aspera is not deployed on Xsede XSEDE yet though it is being examined.
How do I chose between the Tufts HPC (High Performance Compute) cluster and XsedeXSEDE? The decision is not mutually exclusive as both clusters are general purpose clusters running a wide variety of software for a an equally broad user base. Typically if you are running custom code it should be compiled individually for each system.