8 ms·

The submission talks about terabytes of data. Copying/transforming is not viable in such situations.

• ycmbntrthrwaway 11y ago
  With h5dump you can specify which datasets you want to dump. I am sure nobody is going to use awk, grep and wc to process terabytes of data. As for sanity checks, like checking that probabilities stored in a dataset sum up to 1.0 and things like that, dumping one dataset and processing it with awk should be ok.
  • paulmd 11y ago
    Actually, piping data between standard Unix tools can be extremely efficient. This example is working on gigabytes rather than terabytes of data, but memory utilization is basically limited to just buffers, so you could definitely scale that to terabytes without a problem. http://aadrake.com/command-line-tools-can-be-235x-faster-than-your-hadoop-cluster.html http://aadrake.com/command-line-tools-can-be-235x-faster-tha...