changes while testing parallelization of autopicker

pylot/core/active/activeSeismoPick.py

@@ -3,7 +3,11 @@ import sys
 import numpy as np
 from pylot.core.active import seismicshot
 from pylot.core.active.surveyUtils import cleanUp
+import copy_reg
+import types
+from pylot.core.util.utils import worker, _pickle_method
 
+copy_reg.pickle(types.MethodType, _pickle_method)
 
 class Survey(object):
     def __init__(self, path, sourcefile, receiverfile, useDefaultParas=False):
@@ -196,6 +200,12 @@ class Survey(object):
         plt.xlabel('Difference in time (auto - manual) [s]')
         return diffs
 
+    def pickShot(self, shTr):
+        shotnumber, traceID = shTr
+        shot = self.getShotForShotnumber(shotnumber)
+        traceID, pick = shot.pickTrace(traceID)
+        return shotnumber, traceID, pick
+
     def pickAllShots(self, vmin=333, vmax=5500, folm=0.6, HosAic='hos',
                      aicwindow=(10, 0)):
         '''
@@ -218,12 +228,22 @@ class Survey(object):
         count = 0
         tpicksum = starttime - starttime
 
+        shTr = []
+
         for shot in self.data.values():
             tstartpick = datetime.now()
             shot.setVmin(vmin)
             shot.setVmax(vmax)
             count += 1
-            shot.pickParallel(folm)
+            #shot.pickParallel(folm)
+            shot.setPickParameters(folm = folm, method = HosAic, aicwindow = aicwindow)
+            for traceID in shot.getTraceIDlist():
+                shTr.append((shot.getShotnumber(), traceID))
+
+        picks = worker(self.pickShot, shTr, async = True)
+
+        for shotnumber, traceID, pick in picks.get():
+            self.getShotForShotnumber(shotnumber).setPick(traceID, pick)
             
             # tpicksum += (datetime.now() - tstartpick);
             # tpick = tpicksum / count

pylot/core/active/fmtomoUtils.py

@@ -280,7 +280,7 @@ class Tomo3d(object):
         '''
         Wipes a certain directory.
         '''
-        print('Wiping directory %s...'%directory)
+        #print('Wiping directory %s...'%directory)
         for filename in os.listdir(directory):
             filenp = os.path.join(directory, filename)
             os.remove(filenp)

pylot/core/active/seismicshot.py

@@ -12,10 +12,14 @@ from pylot.core.pick.utils import getSNR
 from pylot.core.pick.utils import earllatepicker
 import matplotlib.pyplot as plt
 import warnings
+import copy_reg
+import types
+from pylot.core.util.utils import worker, _pickle_method
+
+copy_reg.pickle(types.MethodType, _pickle_method)
 
 plt.interactive('True')
 
-
 class SeismicShot(object):
     '''
     SuperClass for a seismic shot object.
@@ -325,27 +329,24 @@ class SeismicShot(object):
         self.setPick(traceID, None)
         warnings.warn('ambigious or empty traceID: %s' % traceID)
 
-    def pickParallel(self, folm, method = 'hos', aicwindow = (10, 0)):
+    def setPickParameters(self, folm, method = 'hos', aicwindow = (10, 0)):
-        import multiprocessing
-        from pylot.core.util.utils import worker
-
         self.setFolm(folm)
         self.setMethod(method)
         self.setAicwindow(aicwindow)
 
-        maxthreads = multiprocessing.cpu_count()
+    # def pickParallel(self):
-        pool = multiprocessing.Pool(maxthreads)
+    #     traceIDs = self.getTraceIDlist()
+    #     picks = []
+    #     #picks = worker(self.pickTrace, traceIDs)
 
-        traceIDs = self.getTraceIDlist()
+    #     # for traceID, pick in picks:
+    #     #     self.setPick(traceID, pick)
 
-        # picks = worker(self.pickTrace, traceIDs, maxthreads)
+    #     for traceID in traceIDs:
-
+    #         trID, pick = self.pickTrace(traceID)
-        # for traceID, pick in picks:
+    #         picks.append([trID, pick])
-        #     self.setPick(traceID, pick)
+    #         #self.setPick(traceID, pick)
-
+    #     return picks
-        for traceID in traceIDs:
-            trID, pick = self.pickTrace(traceID)
-            self.setPick(traceID, pick)
 
     def pickTrace(self, traceID):
         '''

pylot/core/util/utils.py

@@ -10,6 +10,25 @@ import numpy as np
 from obspy.core import UTCDateTime
 import obspy.core.event as ope
 
+def _pickle_method(m):
+    if m.im_self is None:
+        return getattr, (m.im_class, m.im_func.func_name)
+    else:
+        return getattr, (m.im_self, m.im_func.func_name)
+
+def worker(func, input, cores = 'max', async = False):
+    import multiprocessing
+
+    if cores == 'max':
+        cores = multiprocessing.cpu_count()
+
+    pool = multiprocessing.Pool(cores)
+    if async == True:
+        result = pool.map_async(func, input)
+    else:
+        result = pool.map(func, input)
+    pool.close()
+    return result
 
 def createAmplitude(pickID, amp, unit, category, cinfo):
     '''
@@ -450,13 +469,6 @@ def runProgram(cmd, parameter=None):
     output = subprocess.check_output('{} | tee /dev/stderr'.format(cmd),
                                      shell=True)
 
-def worker(func, input, cores):
-    from multiprocessing import Pool
-    pool = Pool(cores)
-    result = pool.map(func, input)
-    pool.close()
-    return result
-
 if __name__ == "__main__":
     import doctest