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updated post processing script for MPI IO spectralOut file

This commit is contained in:
Pratheek Shanthraj 2015-03-25 16:09:56 +00:00
parent 2417877bdb
commit fe4373a9f9
1 changed files with 4 additions and 14 deletions
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16
processing/post/postResults.py
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@ -267,26 +267,16 @@ class MPIEspectral_result: # mimic py_post result object
return self.N_element_scalars return self.N_element_scalars
def element_scalar(self,e,idx): def element_scalar(self,e,idx):
fourByteLimit = 2**31 -1 -8
incStart = self.dataOffset \ incStart = self.dataOffset \
+ self.position*8*( 1 + self.N_elements*self.N_element_scalars*8//fourByteLimit \ + self.position*8*(self.N_elements*self.N_element_scalars)
+ self.N_elements*self.N_element_scalars)
# header & footer + extra header and footer for 4 byte int range (Fortran) # header & footer + extra header and footer for 4 byte int range (Fortran)
# values # values
where = (e*self.N_element_scalars + idx)*8 where = (e*self.N_element_scalars + idx)*8
try: try:
if where%fourByteLimit + 8 >= fourByteLimit: # danger of reading into fortran record footer at 4 byte limit self.file.seek(incStart+where)
data=''
for i in xrange(8):
self.file.seek(incStart+where+(where//fourByteLimit)*8+4)
data += self.file.read(1)
where += 1
value = struct.unpack('d',data)[0]
else:
self.file.seek(incStart+where+(where//fourByteLimit)*8+4)
value = struct.unpack('d',self.file.read(8))[0] value = struct.unpack('d',self.file.read(8))[0]
except: except:
print 'seeking',incStart+where+(where//fourByteLimit)*8+4 print 'seeking',incStart+where
print 'e',e,'idx',idx print 'e',e,'idx',idx
sys.exit(1) sys.exit(1)
return [elemental_scalar(node,value) for node in self.element(e).items] return [elemental_scalar(node,value) for node in self.element(e).items]