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Merge remote-tracking branch 'upstream/master' into PnInput
This commit is contained in:
Adam Nelson
commit
f2bec91b14
23 changed files with 532 additions and 245 deletions
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@ -62,12 +62,12 @@ settings.xml file.
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----------------------------------
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The ``<confidence_intervals>`` element has no attributes and has an accepted
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value of "on" or "off". If set to "on", uncertainties on tally results will be
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reported as the half-width of the 95% two-sided confidence interval. If set to
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"off", uncertainties on tally results will be reported as the sample standard
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deviation.
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value of "true" or "flase". If set to "true", uncertainties on tally results
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will be reported as the half-width of the 95% two-sided confidence interval. If
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set to "false", uncertainties on tally results will be reported as the sample
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standard deviation.
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*Default*: off
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*Default*: false
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.. _cross_sections:
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@ -185,14 +185,14 @@ performed. It has the following attributes/sub-elements:
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``<no_reduce>`` Element
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-----------------------
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The ``<no_reduce>`` element has no attributes and has an accepted value of "on"
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or "off". If set to "on", all user-defined tallies and global tallies will not
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be reduced across processors in a parallel calculation. This means that the
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accumulate score in one batch on a single processor is considered as an
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The ``<no_reduce>`` element has no attributes and has an accepted value of
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"true" or "false". If set to "true", all user-defined tallies and global tallies
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will not be reduced across processors in a parallel calculation. This means that
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the accumulate score in one batch on a single processor is considered as an
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independent realization for the tally random variable. For a problem with large
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tally data, this option can significantly improve the parallel efficiency.
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*Default*: off
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*Default*: false
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``<output>`` Element
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--------------------
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@ -217,9 +217,18 @@ sections summary file to be written, this element should be given as:
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The ``<ptables>`` element determines whether probability tables should be used
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in the unresolved resonance range if available. This element has no attributes
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or sub-elements and can be set to either "off" or "on".
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or sub-elements and can be set to either "false" or "true".
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*Default*: on
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*Default*: true
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``<run_cmfd>`` Element
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----------------------
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The ``<run_cmfd>`` element indicates whether or not CMFD acceleration should be
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turned on or off. This element has no attributes or sub-elements and can be set
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to either "false" or "true".
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*Defualt*: false
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``<seed>`` Element
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------------------
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@ -340,20 +349,20 @@ attributes/sub-elements:
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*Default*: None
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:source_separate:
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If this element is set to "on", a separate binary source file will be
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If this element is set to "true", a separate binary source file will be
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written. Otherwise, the source sites will be written in the state point
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directly.
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*Default*: "off"
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*Default*: false
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``<survival_biasing>`` Element
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------------------------------
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The ``<survival_biasing>`` element has no attributes and has an accepted value
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of "on" or "off". If set to "on", this option will enable the use of survival
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biasing, otherwise known as implicit capture or absorption.
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of "true" or "false". If set to "true", this option will enable the use of
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survival biasing, otherwise known as implicit capture or absorption.
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*Default*: off
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*Default*: false
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.. _trace:
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@ -990,14 +999,14 @@ sub-elements:
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*Default*: None
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--------------------------------------------
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------------------------------
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CMFD Specification -- cmfd.xml
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--------------------------------------------
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------------------------------
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Coarse mesh finite difference acceleration method has been implemented in OpenMC.
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Currently, it allows users to accelerate fission source convergence during
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inactive neutron batches. To run CMFD, the ``<run_cmfd>`` element in
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``settings.xml`` should be set to ``.true.``.
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``settings.xml`` should be set to "true".
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``<active_flush>`` Element
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--------------------------
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@ -1018,11 +1027,11 @@ The ``<begin>`` element controls what batch CMFD calculations should begin.
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``<feedback>`` Element
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----------------------
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The ``<feedback>`` element controls whether or not the CMFD diffusion result is
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used to adjust the weight of fission source neutrons on the next OpenMC batch.
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It can be turned on with ".true." and off with ".false.".
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The ``<feedback>`` element controls whether or not the CMFD diffusion result is
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used to adjust the weight of fission source neutrons on the next OpenMC batch.
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It can be turned on with "true" and off with "false".
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*Default*: .false.
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*Default*: false
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``<inactive>`` Element
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----------------------
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@ -1030,9 +1039,9 @@ It can be turned on with ".true." and off with ".false.".
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The ``<inactive>`` element controls if cmfd tallies should be accumulated
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during inactive batches. For some applications, CMFD tallies may not be
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needed until the start of active batches. This option can be turned on
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with ".true." and off with ".false."
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with "true" and off with "false"
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*Default*: .true.
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*Default*: true
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``<keff_tol>`` Element
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----------------------
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@ -1047,11 +1056,11 @@ CMFD is allowed to modify source neutron weights.
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-------------------------
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The ``<ksp_monitor>`` element is used to view the convergence of linear GMRES
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iterations in PETSc. This option can be turned on with ".true." and turned off
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with ".false.".
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iterations in PETSc. This option can be turned on with "true" and turned off
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with "false".
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*Default*: .false.
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*Default*: false
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``<mesh>`` Element
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------------------
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@ -1138,28 +1147,28 @@ processors used during OpenMC.
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---------------------------
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The ``<power_monitor>`` element is used to view the convergence of power iteration.
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This option can be turned on with ".true." and turned off with ".false.".
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This option can be turned on with "true" and turned off with "false".
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*Default*: .false.
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*Default*: false
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``<write_balance>`` Element
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---------------------------
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The ``<write_balance>`` element is used to view the balance of OpenMC tally
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residuals for every coarse mesh region and energy group. This option can be
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turned on with ".true." and off with ".false.".
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turned on with "true" and off with "false".
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*Default*: .false.
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*Default*: false
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``<write_hdf5>`` Element
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------------------------
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The ``<write_hdf5>`` element can be turned on with ".true." to get an
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The ``<write_hdf5>`` element can be turned on with "true" to get an
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HDF5 output file of CMFD results.
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*Default*: .false.
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*Default*: false
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``<write_matrices>`` Element
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----------------------------
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@ -1167,6 +1176,6 @@ HDF5 output file of CMFD results.
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The ``<write_matrices>`` element is used to view the PETSc sparse matrices
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created when solving CMFD equations. These binary output files can be imported
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into MATLAB using PETSc-MATLAB utilities. This option can be
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turned on with ".true." and off with ".false.".
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turned on with "true" and off with "false".
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*Default*: .false.
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*Default*: false
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@ -9,8 +9,8 @@ Prerequisites
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-------------
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In order to compile OpenMC, you will need to have a Fortran compiler installed
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on your machine. Since a number of Fortran 2003 features are used in the code,
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it is recommended that you use the latest version of whatever compiler you
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on your machine. Since a number of Fortran 2003/2008 features are used in the
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code, it is recommended that you use the latest version of whatever compiler you
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choose. For gfortran_, it is recommended that you use version 4.5.0 or above.
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If you are using Debian or a Debian derivative such as Ubuntu, you can install
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@ -21,9 +21,10 @@ the gfortran compiler using the following command::
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To compile with support for parallel runs on a distributed-memory architecture,
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you will need to have a valid implementation of MPI installed on your
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machine. The code has been tested and is known to work with the latest versions
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of both OpenMPI_ and MPICH2_. You may use older versions of MPI implementations
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at your own risk. OpenMPI and/or MPICH2 can be installed on Debian derivatives
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with::
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of both OpenMPI_ and MPICH2_. Note that if using OpenMPI, make sure that
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--with-mpi-f90-size is not set to medium or large since this may prevent MPI
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calls from completing successfully in OpenMC. OpenMPI and/or MPICH2 can be
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installed on Debian derivatives with::
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sudo apt-get install mpich2
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sudo apt-get install openmpi-bin
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@ -75,7 +76,7 @@ Options sections in the Makefile:
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COMPILER
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This variable tells the Makefile which compiler to use. Valid options are
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gfortran, intel, pgi, ibm, and cray.
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gnu, intel, pgi, ibm, and cray. The default is gnu (gfortran).
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DEBUG
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Enables debugging when compiling. The flags added are dependent on which
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@ -85,17 +86,21 @@ PROFILE
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Enables profiling using the GNU profiler, gprof.
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OPTIMIZE
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Enables high-optimization using compiler-dependent flags. For gfortran,
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this compiles with -O3. For Intel Fortran, this compiles with -O3 as well as
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interprocedural optimization.
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Enables high-optimization using compiler-dependent flags. For gfortran and
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Intel Fortran, this compiles with -O3.
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USE_MPI
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Enables parallel runs using the Message Passing Interface. Users should also
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set the MPI_ROOT directory further down in the Makefile.
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MPI
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Enables parallel runs using the Message Passing Interface. The MPI_DIR
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variable should be set to the base directory of the MPI implementation.
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USE_HDF5
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Enables HDF5 output in addition to normal screen and text file output. Users
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should also set the HDF5_ROOT directory further down in the Makefile.
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HDF5
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Enables HDF5 output in addition to normal screen and text file output. The
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HDF5_DIR variable should be set to the base directory of the HDF5
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installation.
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PETSC
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Enables PETSc for use in CMFD acceleration. The PETSC_DIR variable should be
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set to the base directory of the PETSc installation.
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It is also possible to change these options from the command line itself. For
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example, if you want to compile with DEBUG turned on without actually change the
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