change calculation of splitting [ci skip]

broadinstitute · Dec 3, 2014 · 786aaaf · 786aaaf
1 parent fc8f97a
commit 786aaaf
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/read_utils.py b/read_utils.py
@@ -10,7 +10,7 @@
 __date__ = "PLACEHOLDER"
 __commands__ = []
 
-import argparse, logging, os, tempfile, shutil, subprocess
+import argparse, logging, math, os, tempfile, shutil, subprocess
 from Bio import SeqIO
 import util.cmd, util.file
 from util.file import mkstempfname
@@ -437,7 +437,7 @@ def split_bam(inBam, outBams) :
 
     # get totalReadCount and maxReads
     totalReadCount = samtools.count(inBam)
-    maxReads = int(round(float(totalReadCount) / len(outBams) / 2) * 2)
+    maxReads = int(math.ceil(float(totalReadCount) / len(outBams) / 2) * 2)
     log.info("splitting %d reads into %d files of %d reads each" % (
         totalReadCount, len(outBams), maxReads))