NSTXpool Computer Upgrade WP #1685 Bill Davis December 9, 2010.

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Presentation transcript:

NSTXpool Computer Upgrade WP #1685 Bill Davis December 9, 2010

Work Scope Upgrade Operating System, Application Software, and Programs that run on NSTX computers using Red Hat Enterprise Linux 3. nstxpool computers + nstxops nstxWindowsPC (Control Room Display Wall) Big Blue cluster for EFIT Selected EPICS computers Buy new computers

Upgrade Reason RHEL3 is at its end-of-life  Cyber Security risk  No more bug fixes or updates

Further Motivation Maintainability: All NSTX Linux computers will have binary compatibility Performance: We could use more processors when things get busy (especially when tasks run away) 64-bit architecture allows programs to access more than 2 GB of RAM CPU crunchers should be on their own node

Software Issues Identifying the software that needs to be ported: IT-maintained code User-maintained code IDL, perl (WebTools), Matlab, python should port easily C, C++, FORTRAN software that doesn’t yet run on the portals, will need to be recompiled for 64bit RHEL5 The Display Wall computer will have a user cursor, but not Multi-cursors No known show-stoppers

Testing IDL, MDSplus utilities, and FORTRAN programs have been tested Checksum of a signal from each tree is the same on new and old systems Pre-Operational Test Procedure (PTP) to verify IT core functions

Tested on 64-bit RHEL5

NSTXwindowsPC (Wall) Drives Control Room Display Wall projectors RedHat 5 64-bit is not supported on current hardware Key software is SharedAppVNC & x2x

NSTXwindowsPC (Wall) Tests on another system went well New PC needs to be purchased $2,700 for PC & graphics board Supports up to 4 Displays

Cost For a system with 8-core 2.4GHz Opteron CPUs & 32 GB of memory the price is ~$3200 each Only maybe 30% faster, so keep old ones NSTXwindowsPC has to be upgraded ($2700) More computers will improve performance: 3x$3200 = $9,600

SCHEDULE 4- OctNov. 6- Dec 13- Dec 20- Dec 27- Dec 3- Jan 10- Jan 17- Jan 24- Jan 31- Jan 7- Feb Engineer Hours Solicit user input on their codes 4 Preliminary Testing 60 Design Review 20 Procure new nstxpool nodes 0 Procure new display wall computer 0 Procure new Big Blue nodes 0 UnixAdmins add & update computers overhead Port & Test nstxops programs 40 Port & Test Display Wall items 40 Port & Test EPICSgate01 40 Port & Test NSTXioc1 40 Port & Test EFIT codes on Big Blue Write & Perform Pre-Ops Test Procedure 40

Conclusions This change will help to:  Mitigate Cyber Security Risks  Migrate core NSTX computers to a supported Linux OS  Reduce impact of runaways  Improve performance

Questions?