Hello Bob,

Go to Task Manager and look at Processes to see if comet is still actually
running.  If so look at Performance and see if it is using the number of
threads that you specified in the parameter file.  This might give a clue
as to why it is taking so long, for example if you somehow told it to use
only one thread.  Did you specify an enzyme or no enzyme search? The latter
will take a long time.  Might help if you posted your comet parameters file.

Also, I have found that running TPP processes from the command line
produces useful output to help debug problems.  You can "cheat" and run it
via Petunia, then copy paste the command from there to a cmd window and
watch the output.  Sometimes you will receive errors or warnings that will
give you a clue as to what is happening.  You might also try generating a
new comet params file and then editing it to suit your conditions.

WRT   msconvert, I usually just do peak picking on those MS levels where
you have profile data and leave rest to defaults.  I am not certain what
msconvert does with profile data by default so I specify that parameter.
It would be nice if others would share their msconvert parameters.

Brian




Brian Hampton
Protein Analysis Lab
Center for Vascular and Inflammatory Diseases
University of Maryland School of Medicine
655 West Baltimore Street BRB 7-018
Baltimore  MD  21201
V: 410-706-8207


On Mon, Mar 21, 2016 at 5:11 PM, <bx2016...@gmail.com> wrote:

> Hi everyone,
>
> I started a Comet search in TPP three days ago and it is still going three
> days later. I must have messed up something without knowing because TPP did
> not generate any error message. Did anyone else have similar experience?
> Please see my system and TPP info below.
>
> HP Z600 Workstation
> Windows 7 Professional
> Processor: Intel(R) Xeon(R) CPU E5640 @ 2.67GHz 2.66 GHz
> Installed memory (RAM): 24.0 GB
> System type: 64-bit Operating System
>
> TPP v4.8.0 PHILAE, Build 201411201551-6764 (mingw-i686)
>
> Comet search
>
> mzXML input file: mydata.mzXML (110 MB)
>                   generated using command line msconvert
>                   C:/Inetpub/tpp-bin/msconvert mydata.raw --mzXML --filter
> "mslevel 2" --filter "threshold count 100 most-intense"
>
> Comet Parameters file: comet.params (default, came with TPP installation)
> Sequence database: human_uniprot_sprot.fasta
>
> Any advice/pointer is greatly appreciated.
>
> Thanks,
>
> Bob Xiong
>
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