[ncl-talk] Unable to Allocate Memory

[Mariama Barr - Dallas]

Dear ncl-talk users,
I keep getting the following errors when I try to open about 70 files (HDF5
format) and opening up three arrays each of approximately length 6000:

    minor: Unable to initialize object
  #003: H5Dchunk.c line 1451 in H5D__create_chunk_mem_map_hyper(): unable
to copy memory space
    major: Dataspace
    minor: Unable to copy object
  #004: H5S.c line 594 in H5S_copy(): can't copy select
    major: Dataspace
    minor: Unable to copy object
  #005: H5Sselect.c line 123 in H5S_select_copy(): can't copy selection
specific information
    major: Dataspace
    minor: Unable to copy object
  #006: H5Shyper.c line 1631 in H5S_hyper_copy(): can't allocate hyperslab
info
    major: Resource unavailable
    minor: No space available for allocation
  #007: H5FL.c line 400 in H5FL_reg_malloc(): memory allocation failed
    major: Resource unavailable
    minor: No space available for allocation
  #008: H5FL.c line 206 in H5FL_malloc(): memory allocation failed for chunk
    major: Resource unavailable
    minor: No space available for allocation

-----------------------------------------------------------------------
Here is the script that accesses the files

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"

DEFAULT_CONT = 0.001
SCALE = 1000000

;--adjust contour levels
;--returns contour levels based on the default scale
function adjContour(data)
local max_n,min_n

begin
max_n = max(data)
min_n = min(data)


end

;--retrieves file namess
function get_file_names()
local names,tmp_str
begin
tmp_str = systemfunc("find /home/Bama4/OCO2_DATA/July_Test_Week -name
'*.h5' ") ; July
return tmp_str
end

;--gets data from all files in the given directory
function processFiles(names)
local longs,lats,data,files_0,tmp, avg_data

begin


files_0 = addfiles(names,"r")
longs = files_0[:]->retrieval_longitude
  lats  = files_0[:]->retrieval_latitude
  data  = files_0[:]->xco2
avg_data = avg(data)

data = abs(data - avg_data)*SCALE ;--scale values
delete(files_0)
delete(avg_data)
return ([/longs,lats,data/])
end

function get_data_()
local n,tmp_list
begin
n = get_file_names()
tmp_list = processFiles(n)
return tmp_list
end


Here is the main script

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"

load "/home/Bama4/OCO2_Data/OCO2_Script.ncl"



begin



;-- Bounds for Region

lon0 = -153.0

lon1 = -163.0

lat0 = 72.4

lat1 = 69.0



;-- Region coordinates and data


list_tmp = get_data_()


longitudes = list_tmp[0]

latitudes = list_tmp[1]

var = list_tmp[2]



;-- define the workstation (plot type and name)

wks = gsn_open_wks("png","unstructured_grid")



;-- set resources

res = True

res at gsnMaximize = True ;-- maximize plot output

res at cnFillOn = True ;-- turn on contour fill

res at cnFillPalette = "rainbow" ;-- choose a colormap

res at tiMainString = "World Map"

res at tiMainFontHeightF = 0.02


res at sfXArray = list_tmp[0]

res at sfYArray = list_tmp[1]



;--res at mpMinLatF = lat1

;--res at mpMaxLatF = lat0

;--res at mpMinLonF = lon1

;--res at mpMaxLonF = lon0

;--manually set the contour levels with the following 3 resources
  res at cnLevelSelectionMode = "ManualLevels"
  res at cnMinLevelValF  = 0.
  res at cnMaxLevelValF  = 500. ; set the maximum contour level
  res at cnLevelSpacingF = 100.


;-- draw the contour map

plot = gsn_csm_contour_map(wks, var, res)


end

-- 
Mariama Barr-Dallas
Meyerhoff Scholar/ NSA Scholar M23
Computer Science Major, History Major
University of Maryland Baltimore County
Class of 2015
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