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<div>NCLers,</div>
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<div>I am recently running NCL daily which all calls function:</div>
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<div>plot := gsn_csm_contour_map(wks, plot_var, res)</div>
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<div>with differnt plot_var, and res has different attributes of color and levels:</div>
<div>e.g. res@cnFillColors and res@cnLevels varies with plot_var.</div>
<div>The "wks" defines plot-type "png", with pixel number in both x,y changes from 256 to 1024.</div>
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<div>One thing I noticed is that the memory usage varies a lot, as below</div>
<div>(from "top" output, where the 5th columns are memory for different jobs):</div>
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<div>10067 whuang 20 0 16.592g 236044 7540 R 100.0 0.1 0:39.64 ncl</div>
<div>14364 whuang 20 0 16.382g 264436 7512 R 100.0 0.1 3:39.19 ncl</div>
<div>41716 whuang 20 0 1378632 143180 7540 R 100.0 0.1 1:15.60 ncl</div>
<div>54309 whuang 20 0 1373192 137288 7540 R 100.0 0.1 1:06.56 ncl</div>
<div>59468 whuang 20 0 1377664 136928 7540 R 100.0 0.1 1:47.91 ncl</div>
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<div>Does anyone has such experience, and knows why memory usage varies so much?</div>
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<div>Thanks,</div>
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<div>Wei</div>
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