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How To Downlad Blastall Executable

Hi,

It seems that the old version of blast (blastall) can make use of multithread processing and speed up things whereas new blast+ versions get stuck to using single thread even when you set the parameters to ask for more threads.

Therefore, I would like to download and use the old blast. The problem is that I cannot seem to find in the ncbi ftp.

Can anyone direct me to the executable file for blastall? Alternatively, can I still use blastall parameters somehow in the new blast+?

Thanks

blast
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updated by anandkeshri99 • anandkeshri99 • written by Pierre Pierre

3 answers

Setting aside whether the issue you describe is really a bug in the application, here is a link to the C BLAST executables:

ftp://ftp.ncbi.nlm.nih.gov/blast/executables/release/2.2.26/

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written by Michael Schubert Michael Schubert

you can find and compile the old versions of the NCBI tools here: ftp://ftp.ncbi.nlm.nih.gov/toolbox/ncbi_tools/old/

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written by Pierre Lindenbaum Pierre Lindenbaum

Alternatively, can I still use blastall parameters somehow in the new blast+?

Use the legacy_blast.pl script included.

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written by JC JC

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