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Add parametric DMD time windowing example #27

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Add parametric DMD time windowing example #27

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25a3627
adding files for varying rdim in time window parametric dmd
klarkowski1 Jul 1, 2024
9d3b9bf
Merge rdim window to existing example and use libROM csvdb to parse file
ckendrick Dec 6, 2024
9c0cad2
Fix MPI issue in parametric_heat_conduction when saving in HDF
ckendrick Dec 11, 2024
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3 changes: 3 additions & 0 deletions examples/dmd/parametric_heat_conduction.py
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Original file line number Diff line number Diff line change
Expand Up @@ -729,6 +729,9 @@ def EvalValue(self, x):
if (offline):
del dmd_u

if not csvFormat:
db.close()

#ifdef MFEM_USE_GSLIB
del pws
del pwsnap_CAROM
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41 changes: 41 additions & 0 deletions examples/dmd/parametric_tw_csv.py
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Expand Up @@ -28,6 +28,10 @@
# // Final-time prediction error (Last line in run/hc_parametric_tw/dmd_par5_prediction_error.csv):
# // 0.0006507358659606
# //
# // Parametric time windowing DMD command with custom reduced dimension size for each window (for HDF version, append -hdf):
# // python3 parametric_tw_csv.py -o hc_parametric_tw -nwinsamp 25 -dtc 0.01 -rdim_window_file rdim_window_example.csv -offline
# // python3 parametric_tw_csv.py -o hc_parametric_tw -nwinsamp 25 -dtc 0.01 -rdim_window_file rdim_window_example.csv -online
# //
# // =============================================================================
# //
# // Description: Parametric time windowing DMD on general CSV datasets.
Expand Down Expand Up @@ -216,6 +220,9 @@ def GetFilenameHDF(data_dir, sim_name, par_dir, hdf_name, myid, mode):
parser.add_argument("-hdfmode", "--hdfmodefilename", dest='fileNameMode',
action='store', default=0, type=int,
help="HDF filename mode.")
parser.add_argument("-rdim_window_file", "--rdim_window_filename", dest='RDIMWindowfileName',
action='store', default='', type=str,
help="CSV file storing rdim for each window.")

args = parser.parse_args()
if (myid == 0):
Expand Down Expand Up @@ -255,6 +262,7 @@ def GetFilenameHDF(data_dir, sim_name, par_dir, hdf_name, myid, mode):
subsample = args.subsample
eval_subsample = args.eval_subsample
fileNameMode = args.fileNameMode
RDIMWindowfileName = args.RDIMWindowfileName

assert((not (offline and online)) and (offline or online))
assert(not ((dtc > 0.0) and (ddt > 0.0)))
Expand Down Expand Up @@ -321,6 +329,28 @@ def GetFilenameHDF(data_dir, sim_name, par_dir, hdf_name, myid, mode):
indicator_init = []
indicator_last = []

#######
#load window list here
#######
use_rdim_windows=False
window_dim_list=[]
if RDIMWindowfileName != "":
if not RDIMWindowfileName.endswith(".csv"):
RDIMWindowfileName += ".csv"
window_dim_list = csv_db.getStringVector((list_dir) + "/" + RDIMWindowfileName, False)
if window_dim_list[0] == 'RDIM':
use_rdim_windows=True
elif window_dim_list[0] == 'EF':
use_rdim_windows=False
else:
raise RuntimeError("Expected RDIM or EF as first line in window file")
for window in range(len(window_dim_list)):
window_dim_list[window] = window_dim_list[window].split(',')
window_dim_list = window_dim_list[1:] # chop header from list
print("Read window file with {} windows:".format(len(window_dim_list)))
for window in window_dim_list:
print(" Window {}: {} = {}".format(window[0], "RDIM" if use_rdim_windows else "EF", window[1]))

training_par_list = csv_db.getStringVector((list_dir) + "/" + train_list + ".csv", False)
npar = len(training_par_list)
assert(npar > 0)
Expand Down Expand Up @@ -529,10 +559,21 @@ def GetFilenameHDF(data_dir, sim_name, par_dir, hdf_name, myid, mode):
if (myid == 0):
print("Loaded %d samples for %s." % (snap_bound[1] - snap_bound[0] + 1, par_dir))

if len(window_dim_list) > 0:
# check that window samples is consistent with number of windows in the csv file
tot_samples=snap_bound[1] - snap_bound[0]
assert((len(window_dim_list)*windowNumSamples) == tot_samples), "Mismatch between -nwinsamp, number of windows in -rdim_window_file, and total number of samples"

for window in range(numWindows):
if (useWindowDims):
rdim = windowDim[window]

if len(window_dim_list) > 0:
if use_rdim_windows:
rdim = int(window_dim_list[window][1])
else:
ef = float(window_dim_list[window][1])

if (rdim != -1):
if (myid == 0):
print("Creating DMD model #%d with rdim: %d" % (window, rdim))
Expand Down
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