idaholab · W0lfShAd0w · Jun 12, 2025 · Jul 17, 2025 · Jul 24, 2025 · Jul 30, 2025
diff --git a/.gitignore b/.gitignore
@@ -68,6 +68,7 @@ tests/framework/ROM/TimeSeries/ARMA/InterpolatedMaxCycles/
 tests/framework/ROM/TimeSeries/SyntheticHistory/LogARMA/
 tests/framework/ROM/TimeSeries/SyntheticHistory/VARMA/
 tests/framework/ROM/TimeSeries/SyntheticHistory/ZeroFilterDiscontinuous/
+*.xml.bak
 
 # hpc
 node_*[0-9]

diff --git a/plugins/ExamplePlugin/tests/test_example_plugin.xml b/plugins/ExamplePlugin/tests/test_example_plugin.xml
@@ -21,6 +21,7 @@
   <RunInfo>
     <WorkingDir>simpleTest</WorkingDir>
     <Sequence>MCrun, trainROM, sampleROM, printTOfile</Sequence>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Steps>

diff --git a/plugins/ExamplePlugin/tests/test_interfacedPP.xml b/plugins/ExamplePlugin/tests/test_interfacedPP.xml
@@ -15,6 +15,7 @@
     <Sequence>FirstMRun,PP</Sequence>
     <batchSize>1</batchSize>
     <internalParallel>True</internalParallel>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/plugins/ExamplePlugin/tests/test_interfacedPP_parallel.xml b/plugins/ExamplePlugin/tests/test_interfacedPP_parallel.xml
@@ -15,6 +15,7 @@
     <Sequence>FirstMRun,PP</Sequence>
     <batchSize>1</batchSize>
     <internalParallel>True</internalParallel>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/plugins/ExamplePlugin/tests/test_interfacedPP_pointset.xml b/plugins/ExamplePlugin/tests/test_interfacedPP_pointset.xml
@@ -14,6 +14,7 @@
     <WorkingDir>interfacedPostProcessor_PointSet</WorkingDir>
     <Sequence>FirstMRun,PP</Sequence>
     <batchSize>1</batchSize>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/plugins/ExamplePlugin/tests/test_projectile_code_plugin.xml b/plugins/ExamplePlugin/tests/test_projectile_code_plugin.xml
@@ -13,6 +13,7 @@
     <WorkingDir>ProjectileCodePlugin</WorkingDir>
     <Sequence>runGrid</Sequence>
     <batchSize>1</batchSize>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/plugins/ExamplePlugin/tests/test_raven_running_raven_plugin.xml b/plugins/ExamplePlugin/tests/test_raven_running_raven_plugin.xml
@@ -25,6 +25,7 @@
     <batchSize>1</batchSize>
     <NumMPI>1</NumMPI>
     <parallelMethod>dask</parallelMethod>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
 <Files>

diff --git a/ravenframework/Simulation.py b/ravenframework/Simulation.py
@@ -40,6 +40,7 @@
 from .JobHandler import JobHandler
 from .utils import utils, TreeStructure, xmlUtils, mathUtils
 from .utils.utils import ParallelLibEnum
+from .utils.randomUtils import randomSeed
 from . import Decorators
 from .Application import __QtAvailable
 from .Interaction import Interaction
@@ -582,6 +583,7 @@ def __readRunInfo(self, xmlNode, runInfoSkip, xmlFilename):
       runInfoSkipIter = set()
     else:
       runInfoSkipIter = runInfoSkip
+    parsedSeed = False #log if globalSeed parameter if parsed and print to log accordingly
     for element in xmlNode:
       if element.tag in runInfoSkipIter:
         self.raiseAWarning(f"Skipped element {element.tag}")
@@ -736,8 +738,15 @@ def __readRunInfo(self, xmlNode, runInfoSkip, xmlFilename):
         if modeName in self.__modeHandlerDict:
           self.raiseAWarning(f"duplicate mode definition {modeName}")
         self.__modeHandlerDict[modeName] = module.__dict__[modeClass]
+      elif element.tag == 'globalSeed': #this is needed for reproducibility in case the RNG is called before a standard seeding step.
+        parsedSeed = True
+        globalSeed = int(element.text) if element.text.lower() != 'none' else None
+        self.raiseADebug('Setting RAVEN RNG seed to',globalSeed)
+        randomSeed(globalSeed) #Reinstance the global generator with the requested seed.
       else:
         self.raiseAnError(IOError, f'RunInfo element "{element.tag}" unknown!')
+      if not parsedSeed:
+        self.raiseADebug('No globalSeed specified in RunInfo, defaulting to a high entropy RNG state.')
 
   def printDicts(self):
     """

diff --git a/ravenframework/utils/randomUtils.py b/ravenframework/utils/randomUtils.py
@@ -218,15 +218,18 @@ def __init__(self):
     """
     self._engine = None
     self._seed = None
-    self.seed(5489)  # default seed of boost::random::mt19937
+    self.seed(None)  # default seed of boost::random::mt19937 was 5489. If this is desired, set <globalSeed>5489</globalSeed> under node <RunInfo> in the '.xml'.
 
   def seed(self, value):
     """
       Reseeds the RNG
-      @ In, value, int, RNG seed
+      @ In, value, int or NoneType, RNG seed
       @ Out, None
     """
-    self._seed = abs(int(value))
+    if value is not None:
+      self._seed = abs(int(value))
+    else:
+      self._seed = value #'None' prompts the bitGenerator to grab a "high entropy seed from the OS", which defines the inital state.
     # According to the numpy docs, best practice is to create a new Generator rather than reseed an
     # existing one.
     bitGenerator = np.random.MT19937()

diff --git a/scripts/conversionScripts/convert_globalseed.py b/scripts/conversionScripts/convert_globalseed.py
@@ -0,0 +1,45 @@
+# Copyright 2017 Battelle Energy Alliance, LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import xml.etree.ElementTree as ET
+
+def convert(tree,fileName=None):
+  """
+    Converts input files to include the <globalSeed> argument under <RunInfo>. This enables
+    backwards compatibility following updates made to randomUtils.py.
+    @ In, tree, xml.etree.ElementTree.ElementTree object, the contents of a RAVEN input file
+    @ In, fileName, the name for the raven input file
+    @Out, tree, xml.etree.ElementTree.ElementTree object, the modified RAVEN input file
+  """
+  newTag = 'globalSeed'
+  newValue = 5489
+
+  simulation = tree.getroot()
+  runInfo = simulation.find('RunInfo')
+  if runInfo is not None:
+    elemExists = False
+    for child in runInfo:
+      if child.tag == newTag:
+        elemExists = True
+    if not elemExists:
+      newElem = ET.Element(newTag)
+      newElem.text = str(newValue)
+      runInfo.append(newElem)
+  return tree
+
+if __name__=='__main__':
+  import convert_utils
+  import sys
+  convert_utils.standardMain(sys.argv,convert)
+  ## the following is provided as an example format for the expected content of the system arguments (sys.argv):
+  #sys.argv = ['/home/rollnk/LWRS-PRLO/raven_latest/scripts/conversionScripts/convert_globalseed.py','--tests','--no-rewrite']
diff --git a/tests/cluster_tests/AdaptiveSobol/test_adapt_sobol_parallel.xml b/tests/cluster_tests/AdaptiveSobol/test_adapt_sobol_parallel.xml
@@ -10,6 +10,7 @@
       pbs
       <runQSUB/>
     </mode>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Steps>

diff --git a/tests/cluster_tests/InternalParallel/test_ensemble_model_linear_internal_parallel.xml b/tests/cluster_tests/InternalParallel/test_ensemble_model_linear_internal_parallel.xml
@@ -7,6 +7,7 @@
     <internalParallel>True</internalParallel>
     <expectedTime>00:10:00</expectedTime>
     <JobName>test_qsub</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Distributions>

diff --git a/tests/cluster_tests/InternalParallel/test_ensemble_model_picard_parallel.xml b/tests/cluster_tests/InternalParallel/test_ensemble_model_picard_parallel.xml
@@ -7,6 +7,7 @@
     <internalParallel>True</internalParallel>
     <expectedTime>00:10:00</expectedTime>
     <JobName>test_qsub</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Distributions>

diff --git a/tests/cluster_tests/InternalParallel/test_hybrid_model_code.xml b/tests/cluster_tests/InternalParallel/test_hybrid_model_code.xml
@@ -7,6 +7,7 @@
     <batchSize>3</batchSize>
     <internalParallel>True</internalParallel>
     <expectedTime>00:10:00</expectedTime>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/cluster_tests/InternalParallel/test_hybrid_model_external.xml b/tests/cluster_tests/InternalParallel/test_hybrid_model_external.xml
@@ -7,6 +7,7 @@
     <batchSize>3</batchSize>
     <internalParallel>True</internalParallel>
     <expectedTime>00:10:00</expectedTime>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Distributions>

diff --git a/tests/cluster_tests/InternalParallel/test_internal_MSR.xml b/tests/cluster_tests/InternalParallel/test_internal_MSR.xml
@@ -14,6 +14,7 @@
     <internalParallel>True</internalParallel>
     <expectedTime>00:10:00</expectedTime>
     <JobName>test_qsub</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Models>

diff --git a/tests/cluster_tests/InternalParallel/test_internal_parallel_PP_LS.xml b/tests/cluster_tests/InternalParallel/test_internal_parallel_PP_LS.xml
@@ -7,6 +7,7 @@
     <internalParallel>True</internalParallel>
     <expectedTime>00:10:00</expectedTime>
     <JobName>test_qsub</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/cluster_tests/InternalParallel/test_internal_parallel_ROM_scikit.xml b/tests/cluster_tests/InternalParallel/test_internal_parallel_ROM_scikit.xml
@@ -7,6 +7,7 @@
     <internalParallel>True</internalParallel>
     <expectedTime>00:10:00</expectedTime>
     <JobName>test_qsub</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Steps>

diff --git a/tests/cluster_tests/InternalParallel/test_internal_parallel_extModel.xml b/tests/cluster_tests/InternalParallel/test_internal_parallel_extModel.xml
@@ -8,6 +8,7 @@
     <internalParallel>True</internalParallel>
     <expectedTime>00:10:00</expectedTime>
     <JobName>test_qsub</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <!-- STEPS -->

diff --git a/tests/cluster_tests/RavenRunsRaven/code_dask.xml b/tests/cluster_tests/RavenRunsRaven/code_dask.xml
@@ -11,7 +11,7 @@
     </description>
     <revisions>
       <revision author="alfoa" date="2021-04-21">Modified test to add test the internalParallel with outer initialization (RAY) and inner usage (using the new
-         nodes headNode and remoteNodes 
+         nodes headNode and remoteNodes
       </revision>
       <revision author="cogljj" date="2023-04-11">Added a dask version of this test</revision>
     </revisions>
@@ -27,6 +27,7 @@
     <NodeParameter>--hostfile</NodeParameter>
     <RemoteRunCommand>raven_ec_qsub_command.sh</RemoteRunCommand>
     <parallelMethod>dask</parallelMethod>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Steps>

diff --git a/tests/cluster_tests/RavenRunsRaven/code_ray.xml b/tests/cluster_tests/RavenRunsRaven/code_ray.xml
@@ -26,6 +26,7 @@
     <NodeParameter>--hostfile</NodeParameter>
     <RemoteRunCommand>raven_ec_qsub_command.sh</RemoteRunCommand>
     <parallelMethod>ray</parallelMethod>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Steps>

diff --git a/tests/cluster_tests/RavenRunsRaven/rom.xml b/tests/cluster_tests/RavenRunsRaven/rom.xml
@@ -18,6 +18,7 @@
     <Sequence>FirstMRun</Sequence>
     <batchSize>5</batchSize>
     <expectedTime>0:10:0</expectedTime>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/cluster_tests/test_mpiqsub_1_proc.xml b/tests/cluster_tests/test_mpiqsub_1_proc.xml
@@ -21,6 +21,7 @@
     <NumMPI>2</NumMPI>
     <expectedTime>0:10:00</expectedTime>
     <JobName>test_mpiqsu</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/cluster_tests/test_mpiqsub_flex.xml b/tests/cluster_tests/test_mpiqsub_flex.xml
@@ -27,6 +27,7 @@
     <NumMPI>2</NumMPI>
     <expectedTime>0:10:00</expectedTime>
     <JobName>test_qsub</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/cluster_tests/test_mpiqsub_forced.xml b/tests/cluster_tests/test_mpiqsub_forced.xml
@@ -26,6 +26,7 @@
       <coresneeded>2</coresneeded>
       <runQSUB/>
     </mode>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/cluster_tests/test_mpiqsub_local.xml b/tests/cluster_tests/test_mpiqsub_local.xml
@@ -22,6 +22,7 @@
     <NumMPI>2</NumMPI>
     <expectedTime>0:10:00</expectedTime>
     <JobName>test_mpiqsu</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/cluster_tests/test_mpiqsub_long.xml b/tests/cluster_tests/test_mpiqsub_long.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" ?>
-<Simulation verbosity='debug'>
+<Simulation verbosity="debug">
   <TestInfo>
     <name>cluster_tests/test_mpiqsub</name>
     <author>cogljj</author>
@@ -22,6 +22,7 @@
     <NumMPI>1</NumMPI>
     <expectedTime>0:10:00</expectedTime>
     <JobName>test_mpilong</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>
@@ -92,7 +93,7 @@
   </DataObjects>
 
   <OutStreams>
-    <Print name='samples'>
+    <Print name="samples">
       <type>csv</type>
       <source>stories</source>
       <what>input,output</what>

diff --git a/tests/cluster_tests/test_mpiqsub_noprecommand.xml b/tests/cluster_tests/test_mpiqsub_noprecommand.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" ?>
-<Simulation verbosity='debug'>
+<Simulation verbosity="debug">
   <TestInfo>
     <name>cluster_tests/test_mpiqsub_noprecommand</name>
     <author>cogljj</author>
@@ -25,7 +25,8 @@
       <MPIParam>--bind-to none</MPIParam>
       <noPrecommand/>
     </mode>
-   </RunInfo>
+    <globalSeed>5489</globalSeed>
+  </RunInfo>
 
   <Files>
     <Input name="simple_gp_test.i" type="">simple_gp_test.i</Input>
@@ -96,7 +97,7 @@
   </DataObjects>
 
   <OutStreams>
-    <Print name='samples'>
+    <Print name="samples">
       <type>csv</type>
       <source>stories</source>
       <what>input,output</what>

diff --git a/tests/cluster_tests/test_mpiqsub_nosplit.xml b/tests/cluster_tests/test_mpiqsub_nosplit.xml
@@ -25,6 +25,7 @@
     <NumMPI>2</NumMPI>
     <expectedTime>0:10:00</expectedTime>
     <JobName>test_qsub</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/cluster_tests/test_pbs.xml b/tests/cluster_tests/test_pbs.xml
@@ -24,6 +24,7 @@
     <RemoteRunCommand>raven_qsub_command.sh</RemoteRunCommand>
     <mode>pbsdsh</mode>
     <JobName>test_qsub</JobName>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/framework/CodeInterfaceTests/AcceleratedCFD/test_perturb_acdf.xml b/tests/framework/CodeInterfaceTests/AcceleratedCFD/test_perturb_acdf.xml
@@ -18,6 +18,7 @@
     <WorkingDir>AcceleratedCFDTest1</WorkingDir>
     <Sequence>testAcceleratedCFD,dumpResults</Sequence>
     <batchSize>1</batchSize>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/framework/CodeInterfaceTests/CobraTF/test1_cobratf_code_interface.xml b/tests/framework/CodeInterfaceTests/CobraTF/test1_cobratf_code_interface.xml
@@ -18,6 +18,7 @@
     <WorkingDir>CobraTFinterfaceTest1</WorkingDir>
     <Sequence>testDummyStep_MC</Sequence>
     <batchSize>1</batchSize>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/framework/CodeInterfaceTests/CobraTF/test2_cobratf_code_interface.xml b/tests/framework/CodeInterfaceTests/CobraTF/test2_cobratf_code_interface.xml
@@ -18,6 +18,7 @@
     <WorkingDir>CobraTFinterfaceTest2</WorkingDir>
     <Sequence>testDummyStep_Grid</Sequence>
     <batchSize>1</batchSize>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/framework/CodeInterfaceTests/CobraTF/test3_cobratf_code_interface.xml b/tests/framework/CodeInterfaceTests/CobraTF/test3_cobratf_code_interface.xml
@@ -16,6 +16,7 @@
     <WorkingDir>CobraTFinterfaceTest3</WorkingDir>
     <Sequence>testDummyStep_MC</Sequence>
     <batchSize>1</batchSize>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>

diff --git a/tests/framework/CodeInterfaceTests/CobraTF/test4_cobratf_code_interface.xml b/tests/framework/CodeInterfaceTests/CobraTF/test4_cobratf_code_interface.xml
@@ -16,6 +16,7 @@
     <WorkingDir>CobraTFinterfaceTest4</WorkingDir>
     <Sequence>testDummyStep_MC</Sequence>
     <batchSize>1</batchSize>
+    <globalSeed>5489</globalSeed>
   </RunInfo>
 
   <Files>
-Original file line number
+Diff line change
@@ Expand Up / @@ -10,6 +10,7 @@ @@
           pbs
           <runQSUB/>
         </mode>
+        <globalSeed>5489</globalSeed>
       </RunInfo>
       <Steps>
@@ Expand Down @@