# A FUP programming question

Gustavo Glusman (bmgustav@bioinformatics.weizmann.ac.il)
Thu, 27 Feb 1997 01:01:02 PST

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    >	I am trying to save an extensive amount of data on disk instead
    >of in the database. Unfortunatly, it's not working. I don't know if you
    >are familiar with the Markov Chainer, but it make some very large
    >properties for the data it uses. This is my code and my error.

    First of all, sorry for not replying to your previous query. I'm rather
    swamped.

    >	where = tostr("markov/",this);
    >	suspend(1);
    >	data = fileread(where,args[1]);
    >
    >	args[1] is passed as one of these three strings, "words",
    >"tlinks", "flinks". It calls this code once for each of the strings, but
    >on the final call, for "flinks", it TBs out with an  'out of seconds' error
    >on the 'fileread' line.
    >	But if I type
    >
    >	;fileread("markov/#110","flink")
    >
    >I get the data just like I am supposed to with no errors at all.
    >	I'm sure that the answer to my problem is a simple one, but I
    >can't seem to track it down.

    Remember that foreground and background tasks have different ticks/seconds
    allocations. Your verb suspends and then filereads, i.e. it's a background
    task. The eval is a foreground task.
    Try:   ;;suspend(0);fileread("markov/#110","flink")  to test this out.
    In any case you would either need to raise the background seconds
    allocation, if this suits your purpose - or better read the information in
    chunks, or use filegrep/fileextract to locate the info you want, then use
    fileread to read a few selected lines from the file. Reading a huge file in
    one go is bound to be slow.

    Best luck,

         ____________________________________________________________
         Gustavo Glusman              Founder/administrator of BioMOO
         Gustavo@bioinfo.weizmann.ac.il    (public PGP key available)
         http://bioinfo.weizmann.ac.il/Gustavo
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