dev:debugging
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dev:debugging [2015/12/18 14:36] – [valgrind] vondele | dev:debugging [2016/11/02 11:51] – Add OMP_NUM_THREADS and some valgrind options. agloess | ||
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Run valgrind with | Run valgrind with | ||
< | < | ||
- | valgrind --max-stackframe=2100192 | + | valgrind --max-stackframe=2100192 --leak-check=full --track-origins=yes |
</ | </ | ||
to get the origin of undefined variables in addition to a leak check report. | to get the origin of undefined variables in addition to a leak check report. | ||
Line 60: | Line 60: | ||
==== understanding memory usage ==== | ==== understanding memory usage ==== | ||
- | valgrind also comes with the ' | + | valgrind also comes with the ' |
Rather easy with | Rather easy with | ||
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The valgrind homepage has [[http:// | The valgrind homepage has [[http:// | ||
+ | |||
+ | ==== valgrind in parallel ==== | ||
+ | |||
+ | valgrind can also be used for debugging parallel code, eg.: | ||
+ | |||
+ | < | ||
+ | mpirun -np 2 -x OMP_NUM_THREADS=2 | ||
+ | </ | ||
+ | |||
===== Memory leak checking ===== | ===== Memory leak checking ===== | ||
dev/debugging.txt · Last modified: 2020/08/21 10:15 by 127.0.0.1