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Questions about RAM usage, including optimizing memory use, avoiding and fixing leaks and releasing unused memory.

3
votes
0answers
Summary: The evaluation of an Export[...] expression fails with a "Not enough memory available" error, but the value returned by MaxMemoryUsed[] is well below the available memory reported by the … memory available to rasterize Notebook expression. MaxMemoryUsed: 487726296 bytes total used free shared buffers cached Mem: 33710690304 18287972352 15422717952 …
asked May 28 '16 by kjo
15
votes
3answers
, MemoryInUse[]]], UpdateInterval -> 1]] (Evaluate Quit[], or equivalently, choose Evaluation > Quit Kernel, to stop it.) This code produces a very lousy memory monitor, because it, all by itself, causes … the memory to grow steadily. IOW, it's a honking memory leak. I tried something that I thought would be more conservative: nReadings = 100; miu = Table[0, nReadings]; i = 0; updatemiu[] := Module …
asked Oct 30 '15 by kjo
2
votes
0answers
than enough memory to handle such a large file. Below is a summary of the available memory before I start Mathematica: $ free -h total used free shared buffers … bytes, to be precise), a minuscule amount. (The kernel probably crashed during evaluation, so this figure is not very informative.) Indeed, the machine's memory usage now is not very different from …
asked Apr 28 '17 by kjo
11
votes
3answers
By "low-complexity list" I mean a list like the following: lcl = {17, 17, 17, 17, 17, 21, 21, 21, 21, 21, 21, 21, 21, 11, 11, 11, 11, 11, 11, 11} It contains 20 elements, but only 3 d …
asked May 17 '17 by kjo