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  • mido1951
    Senior Member
    • May 2014
    • 123

    memory Problem With Blat

    hello,
    I use BLAT for input data.
    but after there has been an error of memory.
    Code:
    [B]needMem: Trying to allocate 543294960 bytes (limit: 500 000 000)[/B]
    do you know solve this problem?
    thank you
  • GenoMax
    Senior Member
    • Feb 2008
    • 7142

    #2
    How much memory do you have on this machine? Looks like blat is asking for allocation of 543 MB but only 500 MB is available. Is this on 32-bit OS?

    Comment

    • mido1951
      Senior Member
      • May 2014
      • 123

      #3
      i run this in server with 32GB RAM.
      no it is in 64bit Machine

      Comment

      • GenoMax
        Senior Member
        • Feb 2008
        • 7142

        #4
        In that case check to see if there is a problem with query/database files (a search brought up this thread:http://redmine.soe.ucsc.edu/forum/in...ed756eb8a226ad). What size are those two files (query/database)?

        Comment

        • mido1951
          Senior Member
          • May 2014
          • 123

          #5
          the size of the query is 3,6GB and the database is 310MB.

          Comment

          • GenoMax
            Senior Member
            • Feb 2008
            • 7142

            #6
            Can you try switching the query and database around to see if you still get the error?

            Comment

            • mido1951
              Senior Member
              • May 2014
              • 123

              #7
              it is the same error message.
              Code:
              needMem: Trying to allocate 543294960 bytes (limit: 500 000 000)
              do you have another idea?

              Comment

              • GenoMax
                Senior Member
                • Feb 2008
                • 7142

                #8
                Sounds like you may have some formatting problem with one (or more of your sequences). Use one of the code suggestions here to validate your files: https://www.biostars.org/p/42126/

                Comment

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