Tutorial: GotCloud

From Genome Analysis Wiki
Revision as of 23:59, 7 January 2013 by Amkwong (talk | contribs)
Jump to: navigation, search

1. Installation

First, make sure GotCloud is installed on your system. Installation instructions here.

2. Running the Automatic Test

This verifies that GotCloud was installed correctly.

To run the test case automatically, change your current directory to gotcloud's base directory, and type in the following command:

/bin/gen_biopipeline.pl --test OUTPUT_DIR

where OUTPUT_DIR is the directory where you want to store the results.

If you see "Test Passed", then you are ready to run a sample.

3. Running an Example Sample

As an example, we can analyze the sample files used in the automatic test.

To make this easier, change to the test/align directory. It contains an index file and a configuration file that can be used directly.

3.1 Index file

There are four fastq files in test/align/fastq/Sample_1 and four fastq files in test/align/fastq/Sample_2, both in paired-end format. Normally, we would need to build an index file for these files. Conveniently, an index file has already been created for the automatic test samples in indexFile.txt. It contains the following information in tab-delimted format:

MERGE_NAME FASTQ1                           FASTQ2                           RGID   SAMPLE    LIBRARY CENTER PLATFORM
Sample1    fastq/Sample_1/File1_R1.fastq.gz fastq/Sample_1/File1_R2.fastq.gz RGID1  SampleID1 Lib1    UM     ILLUMINA
Sample1    fastq/Sample_1/File2_R1.fastq.gz fastq/Sample_1/File2_R2.fastq.gz RGID1a SampleID1 Lib1    UM     ILLUMINA
Sample2    fastq/Sample_2/File1_R1.fastq.gz fastq/Sample_2/File1_R2.fastq.gz RGID2  SampleID2 Lib2    UM     ILLUMINA
Sample2    fastq/Sample_2/File2_R1.fastq.gz fastq/Sample_2/File2_R2.fastq.gz RGID2  SampleID2 Lib2    UM     ILLUMINA

If you are in the test/align directory, you can use this file as-is. If you prefer, you can create a new index file and change the MERGE_NAME, RGID, SAMPLE, LIBRARY, CENTER, or PLATFORM values. It is recommended that you do not modify existing files in test/align.

If you want to run this example from a different directory, make sure the FASTQ1 and FASTQ2 paths are correct.

3.2 Configuration file