Is this normal?


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Hi,

I did two experiments with the same input file (QA/tests/cytosine_ccsd) on 4 processors.

On the first experiment, the application files are on a hard disk drive, whereas on the second I moved the application into an solid state drive.

I noticed that the runtime of the application the same in both cases, and even it's better (slightly) on the hard disk! Is this normal? Any reason to explain that?