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112 memory leak #122

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112 memory leak #122

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01dd451
[debugging support] added memory monitor to interpolate script, writi…
May 26, 2022
0a93825
added unit to memory monitor
May 26, 2022
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13 changes: 12 additions & 1 deletion globsim/interpolate/GenericInterpolate.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
import tomlkit
import warnings
import logging
import resource

from datetime import datetime, timedelta
from os import path, makedirs, listdir
Expand All @@ -13,6 +14,14 @@
from globsim.boundingbox import stations_bbox, netcdf_bbox, BoundingBox

logger = logging.getLogger('globsim.interpolate')
logger.setLevel(logging.DEBUG)
fh = logging.FileHandler('globsim_interpolate.log')
fh.setLevel(logging.DEBUG)

formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
fh.setFormatter(formatter)

logger.addHandler(fh)
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don't need to put this here.

e.g. globsim interpolate -v or globsim interpolate -v 10 (for logging.DEBUG)

e.g. globsim interpolate -L log.txt


try:
import ESMF
Expand Down Expand Up @@ -124,6 +133,7 @@ def interp2D(self, ncfile_in: str, ncf_in, points, tmask_chunk: "np.ndarray",
variables=variables, date=date)
"""
logger.debug(f"Starting 2d interpolation for chunks {np.min(np.where(tmask_chunk == True))} to {np.max(np.where(tmask_chunk == True))} of {len(tmask_chunk)} ")
logger.debug(f"Current memory usage: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss} kB")

# is it a file with pressure levels?
pl = 'level' in ncf_in.dimensions.keys()
Expand Down Expand Up @@ -262,7 +272,8 @@ def regrid(sfield: "ESMF.Field", dfield: "ESMF.Field") -> "ESMF.Field":
logger.debug("Regridding complete")

sfield.destroy() # free memory

logger.debug(f"Memory usage after freeing memory: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss}")
#fh.emit()
return dfield

@staticmethod
Expand Down
7 changes: 7 additions & 0 deletions globsim/interpolate/MERRAinterpolate.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@

from datetime import datetime
from os import path, makedirs
import resource

from globsim.common_utils import str_encode, variables_skip
from globsim.interpolate.GenericInterpolate import GenericInterpolate
Expand Down Expand Up @@ -216,6 +217,12 @@ def MERRA2station(self, ncfile_in, ncfile_out, points,
ncf_in.close()
ncf_out.close()

try:
dfield.destroy()
logger.debug(f"Cleared dfield, memory usage: {resource.getrusage(resource.RUSAGE_SELF).ru_maxrss}")
except:
print("Could not clear dfield in Merra2station function.")

def levels2elevation(self, ncfile_in, ncfile_out):
"""
Linear 1D interpolation of pressure level data available for individual
Expand Down