Unable to allocate memory when using round function

Can anyone explain what might be causing this error? The array is <1GB, so
in theory, it should be possible.

These lines:

data_all = doubletofloat(fdata->$var$)
printVarSummary(data_all)
data_all = round(data_all*100.,0)/100.
printVarSummary(data_all)

Create this output:

 Copyright (C) 1995-2009 - All Rights Reserved
 University Corporation for Atmospheric Research
 NCAR Command Language Version 5.1.1
 The use of this software is governed by a License Agreement.
 See http://www.ncl.ucar.edu/ for more details.

Variable: data_all
Type: float
Total Size: 466560000 bytes
            116640000 values
Number of Dimensions: 3
Dimensions and sizes: [1800] x [180] x [360]
Coordinates:
Number Of Attributes: 1
  _FillValue : 1e+20

ncl(1813) malloc: *** mmap(size=933122048) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
fatal:round: Unable to allocate memory for output arrays

Thanks!

-- 
Bridget Thrasher, PhD
Postdoctoral Researcher
Climate Central
www.climatecentral.org

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Received on Mon Nov 30 12:46:46 2009