Computing orthologs between all complete proteomes has recently gone from typically a matter of CPU-weeks to hundreds of CPU-years, and new, faster algorithms and methods are called for.
Calulations were conducted on 3,500 cases within a 2-week CPU time on a 14-PC cluster system.
Simulating and processing the 435 million conditions took approximately 4 weeks of CPU time (see Methods for more details).
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For example, rigid body motions and non-linear structural responses can be calculated by a desk-top engineering workstation within a CPU time of one week, employing finite element models assembled by more than 700,000 elements.
The performance of GraphAlignment remains good, with all calculations finished within a week of CPU time.
While this is possible for ProSOM, many of the other programs we tested do not support this, or take prohibitively long time to do this (several weeks on an 80 CPU cluster for one parameter setting).
Numbers of neurons in single versus mixed gestational CPu culture types are similar for all weeks.
The assessment considered over 1 billion potential events and was completed on 32 cores (CPUs) over a period of approximately 8 weeks.
The alternative approach used in this work required less than one week of computation on a single CPU, and could conceivably scale well to much larger data sets using a combination of filtering as above, parallel processing and by exploiting repeated structure in the protein sequence data.
A 2.5 µs run takes three weeks on a single AMD Opteron 252 CPU at 2.6 GHz.
