mBLAST Machine configuration Queries Time per query (ms) x-factora Memory X-factor limit
mBLASTX Small machine (Quad core Nehalem 12 GB) 100,000 3.200 258 12 GB Memory limited
20,000,000 3.200 258 12 GB Memory limited
Large machine (Dual socket-quad Nehalem core 48 GB memory) 100,000 0.992 834 24 GB Query limited
1,000,000 0.604 1370 32 GB Query limited
6,000,000 0.510 1623 48 GB Query limit for 48 GB
20,000,000 0.510 1623 48 GB Memory limited
mTBLASTX Small machine (Quad core Nehalem 12 GB) 100,000 3.9 499 12 GB Memory limited
20,000,000 3.9 499 12 GB Memory limited
Large machine (Dual socket-quad Nehalem core 48 GB memory) 100,000 1.2 1623 24 GB Query Limited
1,000,000 0.3 6490 32 GB Memory limited
6,000,000 0.3 6490 48 GB Memory limited
20,000,000 0.3 6490 48 GB Memory limited
mBLASTP Small machine (Quad core Nehalem 12 GB) 100,000 9.4 94 12 GB Memory limited
20,000,000 9.3 95 12 GB Memory limited
Large machine (Dual socket-quad Nehalem core 48 GB memory) 100,000 2.5 357 24 GB Query Limited
1,000,000 1.2 772 32 GB Memory limited
6,000,000 1.1 779 48 GB Memory limited
20,000,000 1.1 779 48 GB Memory limited
aLarge machine BLAST query procesing time was used to calculate x-factor: 828 msec for BLASTX, 888msec for BLASTP and 1947 msec for TBLASTX.
Table 2: mBLAST algorithm performance on different computer architecturesa.