write process parameter to svd_bank file

gstlal-inspiral/bin/gstlal_inspiral_svd_bank

@@ -192,4 +192,5 @@ for (template_bank, bank_id, clipleft, clipright, bank_type) in zip(template_ban
 	)
 	banks.append(bank)
 
-svd_bank.write_bank(options.write_svd_bank, banks, psd)
+process_param_dict = options.__dict__.copy()
+svd_bank.write_bank(options.write_svd_bank, banks, psd, process_param_dict)

gstlal-inspiral/python/svd_bank.py

@@ -54,6 +54,7 @@ from ligo.lw import lsctables
 from ligo.lw import array as ligolw_array
 from ligo.lw import param as ligolw_param
 from ligo.lw import utils as ligolw_utils
+from ligo.lw.utils import process as ligolw_process
 
 Attributes = ligolw.sax.xmlreader.AttributesImpl
 
@@ -401,13 +402,15 @@ def build_bank(template_bank_url, psd, flow, max_duration, ortho_gate_fap, snr_t
 	return bank
 
 
-def write_bank(filename, banks, psd_input, verbose = False):
+def write_bank(filename, banks, psd_input, process_param_dict = None, verbose = False):
 	"""Write SVD banks to a LIGO_LW xml file."""
 
 	# Create new document
 	xmldoc = ligolw.Document()
 	lw = xmldoc.appendChild(ligolw.LIGO_LW())
-
+	# add Process Parameter Table into svd_bank file
+	if process_param_dict:
+		process = ligolw_process.register_to_xmldoc(xmldoc, program="gstlal_inspiral_svd_bank", paramdict=process_param_dict, comment="Process parameter tables for further calculation")
 	for bank in banks:
 		# set up root for this sub bank
 		root = lw.appendChild(ligolw.LIGO_LW(Attributes({u"Name": u"gstlal_svd_bank_Bank"})))