White paper extract
In addition to documenting the Cells impressive speed-ups, the white paper elaborates on some important differences between Smith-Waterman based searches and BLAST searches:
- BLAST is the better in the explorative phases of the research, and Smith
Waterman is the better in the late stages of the research, where absolutely
correct results are more important than estimates.
- If you have query sequence data with too many of inherent errors, BLAST
searches would often be so imprecise that the results are wrong or
misleading.
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Version history
2.1 March 03 2008
• The Cell now supports computer clusters using MPI (command-line version only)
• Various bug-fixes
2.02 December 17 2007
• Fixed crash on very specific query sequences
2.01 October 4 2007
• Smith-Waterman calculations will not run into memory problems as easily; it can now only happen on machines with 4 cores on databases with extremely long sequences (100 Mb+)
• Smith-Waterman and HMMER will be faster on machines with 4 or more cores
• The Cell is now fully supported on Windows Vista
2.0 August 22 2007
• The Cell now runs an accelerated version of HMMer, with up to 37 times as fast searches as Sean Eddy's own implementation
• ClustalW now runs on multiple cores and now accelerates alignments up to 30 times
• Smith-Waterman BLAST searches have been optimized and now accelerates searches up to 144 times compared to Smith & Waterman's implementation
• Smith-Waterman BLAST searches have been improved on large amounts of data
• Web interface for all algorithms, providing easy access for multiple users
• Various bugs have been fixed
1.04 June 29 2007
• Plug-ins updated to be compatible with new release of the CLC Workbenches: CLC Combined Workbench 3.0, CLC DNA Workbench 3.0, CLC Protein Workbench 3.0, and CLC RNA Workbench 1.0
1.03 June 18 2007
• Implementation of possibility to see version number in command-line mode
• White papers updated, version 1.03
• Fix of smaller bugs
1.01 April 30 2007
• Now works on Intel-based Macs
• Fixed ClustalW bug at gaps longer than 200 nucleotides
0.94 April 2 2007
Added reward/penalty to parameters
0.93 March 12 2007
Changed names of executables
0.92 March 1 2007
Added database information to history.