ComputeFstat: extra flag computeAtoms independent of transientWindowType

@GregAshton what it says on the label; tested that this allows to get full atoms file output even if no transient window is set.

pyfstat/core.py

@@ -384,6 +384,7 @@ class ComputeFstat(BaseSearchClass):
         SSBprec=None,
         tCWFstatMapVersion="lal",
         cudaDeviceName=None,
+        computeAtoms=False,
     ):
         """
         Parameters
@@ -405,6 +406,7 @@ class ComputeFstat(BaseSearchClass):
             allow for the Fstat to be computed over a transient range.
             ('none' instead of None explicitly calls the transient-window
             function, but with the full range, for debugging)
+            (if not None, will also force atoms regardless of computeAtoms option)
         t0Band, tauBand: int
             if >0, search t0 in (minStartTime,minStartTime+t0Band)
                    and tau in (tauMin,2*Tsft+tauBand).
@@ -439,6 +441,8 @@ class ComputeFstat(BaseSearchClass):
             'pycuda' for gpu, and some others for devel/debug.
         cudaDeviceName: str
             GPU name to be matched against drv.Device output.
+        computeAtoms: bool
+            request atoms calculations regardless of transientWindowType
 
         """
 
@@ -550,7 +554,7 @@ class ComputeFstat(BaseSearchClass):
 
         logging.info("Initialising FstatInput")
         dFreq = 0
-        if self.transientWindowType:
+        if self.transientWindowType or self.computeAtoms:
             self.whatToCompute = lalpulsar.FSTATQ_ATOMS_PER_DET
         else:
             self.whatToCompute = lalpulsar.FSTATQ_2F