Seqanswers Leaderboard Ad

Collapse

Announcement

Collapse
No announcement yet.
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Help is needed with openmpi and Ray on cluster

    Hi,

    I run a small Ray job on a cluster to check openmpi and Ray. The current versions on the cluster are openmpi-1.6.4 and Ray is 2.1.

    When compiled on my server with openmpi-1.4, Ray2.1 works just fine with large metazoan dataset (about 30 GB) completing assembly in about 20 hours on machine with 2 quad core E5620 (16 threads) and 96GB memory

    On the cluster Ray2.1 compiled fine as well, and then I tried to run it with one of datasets (about 36 MB) from the above pile that assembled fine on my server. It failed, generating ouput, which I am not quite understand and would appreciate help in interpretation and fixing the problem. Here is Ray.job file:

    Code:
    #$ -S /bin/bash
    #$ -cwd
    #
    #$ -N RayTest
    #$ -pe openmpi 32
    #$ -l h_rt=00:10:00,s_rt=00:08:00,h_vmem=3G
    #$ -j y
    #
    #$ -M [email protected]
    #$ -m eas
    #
    # Load the appropriate module files
    # Should be loaded already
    #$ -V
    
    mpiexec -n $NSLOTS ~/bin/Ray ~/jobs/Ray/Ray.conf
    Here is Ray.conf file:

    Code:
    # configuration file
    -k 31 # k-mer=31
    
    # default autocalc averageOuterDistance standardDeviation
    # all reads trimmed, Q30, FGMGPGIGVA
    
    -s <TestFile.fasta>                    # single read file
    
    -o ~/jobs/Ray/RayOutput         # outputDirectory
    
    -one-color-per-file                # Sets one color per file instead of one per sequence
    -amos                           # writes the AMOS file called RayOutput/AMOS.afg
    #-show-memory-usage              # Shows memory usage
    # -show-memory-allocations        # Shows memory allocation events
    #-write-checkpoints ~/SC/Ray/Checkpoints   # Write checkpoint files
    The ouput file is a bit loger, so it is attached.
    Attached Files

  • #2
    make options

    Did you specify your MPICXX during compile?

    make PREFIX=`pwd` MAXKMERLENGTH=99 MPICXX='/shared/openmpi/intel/bin/mpicxx'

    also I use mpirun -np numberofcpu

    Comment


    • #3
      [SOLVED] Help is needed with openmpi and Ray on cluster

      The cluster guys quickly pointed my error - I compiled Ray with an earlier existing version of openmpi before the latest version was installed on the cluster. I recompuiled it and all works fine now. Thanks to everyone who read my post and responded or was going to respond!

      Comment

      Latest Articles

      Collapse

      • seqadmin
        Essential Discoveries and Tools in Epitranscriptomics
        by seqadmin


        The field of epigenetics has traditionally concentrated more on DNA and how changes like methylation and phosphorylation of histones impact gene expression and regulation. However, our increased understanding of RNA modifications and their importance in cellular processes has led to a rise in epitranscriptomics research. “Epitranscriptomics brings together the concepts of epigenetics and gene expression,” explained Adrien Leger, PhD, Principal Research Scientist on Modified Bases...
        Yesterday, 07:01 AM
      • seqadmin
        Current Approaches to Protein Sequencing
        by seqadmin


        Proteins are often described as the workhorses of the cell, and identifying their sequences is key to understanding their role in biological processes and disease. Currently, the most common technique used to determine protein sequences is mass spectrometry. While still a valuable tool, mass spectrometry faces several limitations and requires a highly experienced scientist familiar with the equipment to operate it. Additionally, other proteomic methods, like affinity assays, are constrained...
        04-04-2024, 04:25 PM

      ad_right_rmr

      Collapse

      News

      Collapse

      Topics Statistics Last Post
      Started by seqadmin, 04-11-2024, 12:08 PM
      0 responses
      39 views
      0 likes
      Last Post seqadmin  
      Started by seqadmin, 04-10-2024, 10:19 PM
      0 responses
      41 views
      0 likes
      Last Post seqadmin  
      Started by seqadmin, 04-10-2024, 09:21 AM
      0 responses
      35 views
      0 likes
      Last Post seqadmin  
      Started by seqadmin, 04-04-2024, 09:00 AM
      0 responses
      55 views
      0 likes
      Last Post seqadmin  
      Working...
      X