From e4b14d2ac61e5977c577a07c9a02968d4a6561fe Mon Sep 17 00:00:00 2001
From: Miriam <mkreher13@gmail.com>
Date: Thu, 14 Jan 2021 17:59:26 +0000
Subject: [PATCH] Quick fix related to the shape of decay-rate.

---
 openmc/mgxs/mdgxs.py                             |  1 -
 openmc/mgxs_library.py                           |  2 +-
 .../mgxs_library_hdf5/results_true.dat           | 16 ++++------------
 3 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/openmc/mgxs/mdgxs.py b/openmc/mgxs/mdgxs.py
index f511579528..7a139c7f87 100644
--- a/openmc/mgxs/mdgxs.py
+++ b/openmc/mgxs/mdgxs.py
@@ -2044,7 +2044,6 @@ class DecayRate(MDGXS):
                          num_delayed_groups)
         else:
             new_shape = (num_subdomains, num_delayed_groups)
-        new_shape += xs.shape[1:]
         xs = np.reshape(xs, new_shape)
 
         if squeeze:
diff --git a/openmc/mgxs_library.py b/openmc/mgxs_library.py
index e3c830c230..15ad54c43a 100644
--- a/openmc/mgxs_library.py
+++ b/openmc/mgxs_library.py
@@ -776,7 +776,7 @@ class XSdata:
         """
 
         # Get the accepted shapes for this xs
-        shapes = [self.xs_shapes["[DG]"], self.xs_shapes["[DG][G]"]]
+        shapes = [self.xs_shapes["[DG]"]]
 
         # Convert to a numpy array so we can easily get the shape for checking
         decay_rate = np.asarray(decay_rate)
diff --git a/tests/regression_tests/mgxs_library_hdf5/results_true.dat b/tests/regression_tests/mgxs_library_hdf5/results_true.dat
index 4aa243b9e3..4a796b0a51 100644
--- a/tests/regression_tests/mgxs_library_hdf5/results_true.dat
+++ b/tests/regression_tests/mgxs_library_hdf5/results_true.dat
@@ -193,18 +193,10 @@ domain=1 type=beta
  [1.21876271e-04 8.77101834e-05]
  [4.95946084e-05 3.67414816e-05]]
 domain=1 type=decay-rate
-[[1.33568413e-02]
- [3.25887984e-02]
- [1.21105565e-01]
- [3.06139633e-01]
- [8.62763808e-01]
- [2.89789222e+00]]
-[[9.57055016e-04]
- [2.28222032e-03]
- [8.35436401e-03]
- [2.06734948e-02]
- [5.63019289e-02]
- [1.89486538e-01]]
+[1.33568413e-02 3.25887984e-02 1.21105565e-01 3.06139633e-01
+ 8.62763808e-01 2.89789222e+00]
+[9.57055016e-04 2.28222032e-03 8.35436401e-03 2.06734948e-02
+ 5.63019289e-02 1.89486538e-01]
 domain=1 type=delayed-nu-fission matrix
 [[[0.00000000e+00 0.00000000e+00]
   [0.00000000e+00 0.00000000e+00]]