On 08/17/2012 02:18 PM, Kirk, Benjamin (JSC-EG311) wrote: > On 8/17/12 1:13 PM, "Kirk, Benjamin (JSC-EG311)" <[email protected]> > wrote: > >>> It's doubles stored in binary format, so the average vector/basis >>> function size would be about 2000. >> So then there's a *useful* file size of ~1.6KB per file. There's a lot of >> OS overhead associated with opening and closing a file, and that depends a >> lot too on what type of filesystem you are on (you didn't say?). >> >> But beyond that there is likely a lot of libMesh overhead too - string >> comparisons, memory allocation, etc... I'm wondering if you need a >> specialized I/O implementation where all the vectors are strung together >> consecutively and then streamed to/from disk as one big super-vector? That >> will be much, much faster... > Uhhh - 16KB per file, but the same pithy commentary holds... ;-( > I'm using linux (Ubuntu) with an ext4 filesystem.
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