BLAST+ memory hog with subject FASTA and XML output

Peter Cock · 2012

We noticed a major memory problem running NCBI BLAST+ with XML output using a FASTA subject (consuming loads of swap space then getting killed). This doesn't happen with tabular output, nor if using a BLAST database: Memory and CPU usage (until killed by OS) The screenshots are from the cluster monitoring tool Ganglia, the horizontal red lines show the machine's physical limits (here 4 CPUs and 8 GB of RAM). This example is using BLAST+

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