HI David, > Description of problem: I am running case studies using the NAM_ARW for a > senior project. It outputs in grib format which I use with IDV 2.5 to analyze > the model runs. When I try to load fields it bogs down the computer and takes > a few seconds to load the image. I use mainly the reflectivity products, > whether it be 2d or 3d. When I load multiple images and try to loop them it > does not work because it takes so long to load each image. I tried increasing > the memory available from 512 to 1024 and it did not seem to do anything. I > would include a sample file from the output but it is too large to attach > ~25MB-30MB. Thank you for your help. > > Just how big are these grids? How many time steps and what is the resolution? What kind of display are you creating? There are a number of things that you can do to subset and decimate the grid: http://www.unidata.ucar.edu/software/idv/docs/userguide/misc/PerformanceTuning.html If you are continuing to have problems you can upload your file here: http://motherlode.ucar.edu/repository/entry/show/Top/Unidata/Software/IDV/Support+Uploads?entryid=e850985a-8a2c-44e3-8a05-e547cfb963a1 and we can take a look at it. -Jeff Ticket Details =================== Ticket ID: TBT-341940 Department: Support IDV Priority: Normal Status: Closed