Unconfigured Ad

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • rangel
    Junior Member
    • Mar 2012
    • 4

    #1

    using blast+ for remote blasting

    Hi I'm trying to run a remote blastn search from linux command line.
    Here's my working syntax for doing this with blastcl3, which is now deprecated:

    blastcl3 -p blastn -i seqs.fasta -p blastn -d nr -o blast.out -T -K 1

    I'm trying to translate this to the new blast+ syntax.
    This is what I thought should work:

    blastn -task blastn -remote -db nr -query suspected.seqs.fasta -evalue 0.00001 -dust no -max_target_seqs 1 -html -out output.blastn.html

    but what happens is that the computer hangs for about 20 min and then spews the following error about 100 times:

    Error: Error: internal_error: (Severe Error) Blast search error: Details: search failed. # Informational Message: [blastsrv4.REAL]: Error: CPU usage limit was exceeded, resulting in SIGXCPU (24).

    any suggestions?

    Thanks
    Roey
  • maubp
    Peter (Biopython etc)
    • Jul 2009
    • 1544

    #2
    How many query sequences do you have? If lots, that explains the NCBI CPU limit. You might be better off running it locally.

    Comment

    • rangel
      Junior Member
      • Mar 2012
      • 4

      #3
      The query file contains about a 100 sequences, which doesn't sound a lot to me.
      the old blastcl3 doesn't seem to have any problem with that.
      In any case I tried running blastn with 1 sequence and I get the right restult, but if the new function isn't working as well as the old one why are the people at NCBI deprecating it?!

      Is my syntax wrong maybe? is there a way to optimise it?

      thanks again
      Roey

      Comment

      Latest Articles

      Collapse

      • SEQadmin2
        Multiomic Liquid Biopsy: What DNA/RNA Panels Reveal That DNA Alone Can’t
        by SEQadmin2



        Tumors contain complex mixtures of cell populations that evolve in response to treatment and host-specific factors. Tissue biopsies provide only static snapshots of a tumor’s state. But what if we could follow that evolution over time using a minimally invasive technique?

        Liquid biopsies can detect tumor-derived material circulating in the bloodstream, providing a way to study treatment response, detect emerging resistance, and discover new biomarkers. Circulating
        ...
        10-14-2026, 09:55 AM
      • SEQadmin2
        New Genomics Technologies Take Aim at Long-Standing Limits
        by SEQadmin2


        Researchers using sequencing and genomics tools often have to make trade-offs. They can choose between speed or scale, short reads or long-range information, or targeted panels or a view of the whole transcriptome. New technologies that have been released this year are built to address those tough choices.

        We asked six companies the same four questions to learn about their latest products. The new technologies bring a lot to the table, including rethinking sequencing
        ...
        09-28-2026, 10:25 AM

      ad_right_rmr

      Collapse

      News

      Collapse

      Topics Statistics Last Post
      Started by SEQadmin2, 10-22-2026, 11:13 AM
      0 responses
      22 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-22-2026, 10:48 AM
      0 responses
      19 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-15-2026, 10:52 AM
      0 responses
      36 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-14-2026, 05:39 AM
      0 responses
      42 views
      0 reactions
      Last Post SEQadmin2  
      Working...