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mpiBLAST is a parallelization of BLAST that searches a query sequence consisting of nucleotides (DNA) or peptides (amino acids) against a database of nucleotide or peptide sequences.

The notation denotes a variable (such as directory name, file name, user name, etc.) that user has to substitute.

If a backslash (\) appears in a shell command, then it should be treated as a line continuation, i.e., it could be ignored if the user types in the shell command.

ROCKETCALC provides a shell script (along with source code) that installs mpiBLAST. The following are the steps to install mpiBLAST using the shell script.

Download the file mpiblast-1.2.1-1-rocketcalc.tar.bz2.
Unpack the tarball file:
tar jxf mpiblast-1.2.1-1-rocketcalc.tar.bz2
This will create directory mpiblast-1.2.1-1-rocketcalc.
Change directory to mpiblast-1.2.1-1-rocketcalc:
cd mpiblast-1.2.1-1-rocketcalc
Become root:
su
The user has to enter the root password. This step is not necessary. A regular user may install mpiBLAST.
The user should move (or delete) old mpiBLAST installation if he/she is planning to install it in the same location. The shell script will install mpiBLAST in
/mpiblast/1.2.1
The default value for is /usr/local.
Run the installation script:
./mpiblastinstall
This script will ask the user few questions and then will compile and install mpiBLAST.