Thursday, September 12, 2013

How to Increase MikTeX 2.9 Memory

Originally Posted on  by hsauro

I was recently running some large stochastic simulations and was generating very large pgfplot data files. MikTeX out of the box was unable to compile these plots because it kept running out of main memory. To increase main memory (or other memory limits) run the following line from the DOS prompt:

initexmf --edit-config-file pdflatex

This will open the configuration file for pdflatex into an editor (probably notepad). Add the following lines to this configuration file:


I needed lots of memory so these numbers are quite bit. I’ve got 8GB of RAM so let’s be generous (My first computer was the MK14 which had 256 bytes of RAM, things have moved on a little).

Save the file (file name is provided) and then remake the format files. To do this use the command line:

initexmf --dump=pdflatex

I happen to use pdflatex all the time so note that I am specifying pdflatex in each of the commands. If you’re using straight latex then substitute pdflatex with latex.

Talking about big tikz/pfdplot figures, don’t forget to use the external command:

\tikzexternalize % activate!

This forces tikz to reuse previously stored figures, saves regenerating them all the time. See section 32 of the TikZ manual (Version 2.10 !) for more details.

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