[Numpy-discussion] insanely slow writing to memory mapped array
myeates at jpl.nasa.gov
Wed Nov 29 18:44:35 CST 2006
I have a line in my program that looks like
outarr[1,:] = computed_array
where outarr is a memory mapped file. This takes forever.
I checked and copying the data using "cp" at the command line takes 1
or 2 seconds. So the problem can't be attributed simply to disk i/o. Is
it because the elements are being written one at a time? Any ideas on
how to speed this up?
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