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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Hi users - We (AOS at the University at Albany) have developed a speed-up patch for GEMPAK that we thought we'd share with the community. The patch, and lots of supporting documentation - including installation details - is available from: http://www.atmos.albany.edu/facstaff/rmctc/gempak/#speedPatch The modifications made by the patch make plotting virtually instantaneous on a fast machine and can dramatically improve script performance, especially if a lot of image generation is required. We're using a patched version of the latest GEMPAK distro at UatA on both SunOS and Linux machines. For the technophiles: the patched version of GEMPAK will use sys-V semaphores to track message queue usage rather than the current handshaking method. For normal operations (i.e. unless the user has closed an X-window prematurely ... but users never do that, right?), this means that the 1-2s handshaking wait time is avoided. The waits can add up and produce a noticeable delay for the user. Lots more details about the speedPatch implementation are available from the website above. You can send bug reports or questions to rmctc at atmos dot albany dot edu.
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