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From: Joost V. <jv...@he...> - 2006-01-01 16:34:15
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Hi, I'm running our CP2K program under valgrind (memcheck) and I'm finding that some of the numerical results are slightly different between a normal run and a run under valgrind. The difference is very minor (e.g. -0.94268415669060 vs. -0.94268415669059) and could be due to differences in rounding, but is reproducible (and no errors are generated by valgrind). I'm a bit surprised. Is this a known issue ? This is on opteron with valgrind-3.1.0. If this is 'interesting' I can provide the binary and the input needed to reproduce this. The binary is large (20Mb), but the test runs in just 10min. under valgrind. Thanks, Joost VandeVondele |