Commit Graph

158 Commits

Author SHA1 Message Date
Christoph Kords 965ab38217 corrected error bounds for spectral parameter "maxCutback" 2013-03-28 16:04:47 +00:00
Martin Diehl 7f37f55904 added missing line continuation in numerics and explicit private statements in the other files 2013-03-28 10:37:00 +00:00
Martin Diehl d2ae06015a moved "Random is random" to output of random seed, cleaned up a little 2013-03-28 10:02:11 +00:00
Martin Diehl 15b6242585 set more appropriate default values for spectral solver tolerances (abs stress BC was at huge()) 2013-03-26 16:36:52 +00:00
Martin Diehl e6f6c22a30 polished Abaqus Standard, changed inclusion of OMP functionality from "spectral style" (include) to "marc style" (use) to prevent explicit from crashing 2013-03-25 18:25:15 +00:00
Franz Roters 02f092492e updated copyright header 2013-03-22 17:35:05 +00:00
Martin Diehl dd06d07e1c set default number of iteration for spectral solver to 250 instead of 40, abaqus doxygen now does the correct inclusion (everything appeared twice before) 2013-03-14 23:10:02 +00:00
Martin Diehl 1779510dda remove some unused variables, set default value for divergence calculation to 1.e-5 and made calculation independent of dim and res 2013-03-12 18:48:28 +00:00
Pratheek Shanthraj 0209a1d5a7 restructured AL solver to resemble polarization scheme and introduced alpha and beta parameters in numerics to determine what kind of solution you want. alpha = beta = 1 results in the AL scheme. alpha = beta = 2 results in the accelerated scheme. safe values are anything in between. changed the solver to use stress calculations on the campatible field which seems to result in faster convergence. 2013-02-28 17:35:02 +00:00
Martin Diehl 59da88460e preparation for introduction of plain mode and restructuring of calc modes for CPFEM_general 2013-02-27 20:41:14 +00:00
Pratheek Shanthraj 07ff1f7c93 reporting current time for most module inits 2013-02-25 16:34:59 +00:00
Martin Diehl a98be4e0cf IO_error and IO_warning crashed for string of zero length (or only containing whitespaces), fixed now.
Also added BEGIN and END statement to numerics in case of non-presen DAMASK_NUM_THREADS, would prevent this error and is better for debugging
2013-02-20 21:56:59 +00:00
Martin Diehl c7c81a5ab5 removed unused variables and declared external functions as external 2013-02-11 09:44:17 +00:00
Martin Diehl e9f351c69b forgot to commit 2013-02-08 15:56:58 +00:00
Martin Diehl c6a79d2b3d divergence_correction for basic solver variants has now 3 possibilities:
0: uncorrected, slope per sidelength (physical dimension) e = res/dim
1: corrected by sidelength, slope per unitlength          e = res/1
2: corrected such that distance between FPs               e = 1

alway regarding the medium length of x,y,z direction
2013-01-16 10:40:53 +00:00
Martin Diehl 0d5e91ac87 corrected reporting of basic PETSc variant and unified reporting of all spectral solvers
improved warning and error in IO, now able to report correctly elements up to 9 digits
2013-01-09 22:19:32 +00:00
Martin Diehl 738f363263 corrected small issues with PETSc debugging 2013-01-03 16:17:23 +00:00
Martin Diehl 5c0c7121e7 made PETSc silent by removing -snes_view from default options.
introduced PETSc option for debugging that introduces some debugging options into the petsc options and move PETSc initialization from numerics to DAMASK_spectral_utilities
2012-12-15 18:07:49 +00:00
Martin Diehl 566b680319 made new spectral solver the default (no need for SOLVER=NEW anymore) and added additional warnings switche to be used with gfortran >= 4.6
added comments
2012-12-15 16:21:10 +00:00
Martin Diehl b1f28ba5e7 made restart working for all solvers and added corresponding test
corrected error handling for FFT based function in case of odd numbers etc.
2012-12-14 17:30:22 +00:00
Martin Diehl 7b87987751 introduced option for regridding to numerics.f90, working as follows:
first cut back is tried if material point model oder BVP solver does not converge.
If no regridding is enabled after max cut back, in case of non-converged material point the simulation stops and in case of non-converged BVP solver it continues.
set regridMode to 2 to enable regridding if BVP solver OR materialPoint model do not converge,
set regridMode to 1 to enable regridding if materialPoint model do not converge, non-converged BVP solver will be ignored as in the standard case.
For regridding, the load case need to have a restart freq set.

enabled restarting for Basic PETSc variant
2012-12-14 15:18:04 +00:00
Christoph Kords e10000a338 Introduced an alternative cutback scheme for the nonlocal model, that allows to keep the results of most of the ips that immediately converged, and only do cutbacks in regions where some ips are in big trouble. Only works for nonlocal model and state integrator 2. 2012-11-27 18:36:55 +00:00
Martin Diehl 3ada4897fb reordered PETSc initialization (now first part done in interface, setting of parameters done in numerics), removed unnecessary includes for PETSc
still not running with gfortran, use at own risk!
2012-11-06 16:00:51 +00:00
Martin Diehl d5ce49c471 numerics got some protected statements and is now reading in the new keywords for the solver selection in small letters.
spectral solver got cut back facilities + improved output to screen
2012-10-02 15:26:56 +00:00
Christoph Kords d0fd3c03c5 forgot to check in; belongs to rev 1762 2012-09-24 16:22:25 +00:00
Krishna Komerla 8ed69170c5 corrected wrong warning complaining about FFTW string when DAMASK_NUM_THREADS undefined 2012-09-14 16:39:42 +00:00
Martin Diehl 1cfc467705 added new cut back parameter for spectral solver and instrumented variables for use with doxygen 2012-09-13 09:48:38 +00:00
Martin Diehl 8e3b547cbd changed numerics.f90 back to the old openmp statement as this doesn't seem to cause the problem and is standard conforming
corrected typo in constitutive_j2.f90 that might cause abaqus to crash
now running 20 tests of abaqus in order to have a decent statistic about the crash behavior
improved abaqus_v6.env
2012-08-29 16:16:10 +00:00
Martin Diehl d089c12947 abaqus seems to have similar problems with the openmp lib as marc (use module vs. include file), i hope this fixes the crashes 2012-08-28 19:48:38 +00:00
Martin Diehl 5e9e8497e6 new solver is now compiling without a PETSc installation, however only the plain basic solver is available then.
also removed reporting of PETSc related variables in the case it is not installed/found
2012-08-28 19:19:47 +00:00
Pratheek Shanthraj c2c31a0a59 added SolverBasicPETSC module to the new FFT solver (solves the basic scheme using PETSc when mysolver = basicpetsc in numerics.config)
some bug fixes
2012-08-14 16:58:23 +00:00
Pratheek Shanthraj d0933dad7b added filter option to the spectral solver to mitigate spurious oscillations due to gibb's phenomenon. activate by setting myfilter in config file appropriately (currently only 'none' and 'cosine' options coded). more cleaning up of AL code 2012-08-07 17:23:13 +00:00
Pratheek Shanthraj 32f8c9c6ea moved petsc option string to numerics and added new numerics parameters to config file 2012-08-06 17:27:53 +00:00
Martin Diehl 7e3a837640 moved calculation and output of geometry related data to mesh.f90, moved output of command line related information to DAMASK_spectral_interface.f90.
improved new solver structure (use with make SOLVER=NEW)
2012-08-06 12:43:05 +00:00
Pratheek Shanthraj e2a2621235 updates for AL version of spectral solver 2012-08-06 08:53:12 +00:00
Martin Diehl 4ed68bb4ae next round in modularization 2012-07-25 14:01:39 +00:00
Martin Diehl 9c0a161ec0 in case of regridding, undeformed configuration is written out correctly. Restart improve by reading in additional data from converged step. 2012-07-24 12:21:41 +00:00
Martin Diehl b2fd3e1180 introduced preprocessor identifiers Marc, Abaqus, and Spectral to enable conditional compilation. This allows deleted dummy functions that are used by one solver only.
Mainly affected modules are IO and mesh. Most of the changes in mesh result from reordering the functions when grouping them depending on their solver.
Further advantage is that FE solver do not need FFTW and kdtree2 anymore. The include files for these two libraries moved to DAMASKROO/lib now as I figured out how to use a include path in the Makefile.
Put all the files I got when testing compilation with abaqus in a folder which to become the abaqus compilation test.
2012-06-15 16:10:21 +00:00
Franz Roters 5b7f2e122e fixed usage of OpenMP function library 2012-06-12 09:44:05 +00:00
Martin Diehl 37fa6c2e14 merged code for python and spectral solver interfacing (shared most of it anyway).
put functionality for getting header information (dimension, homogenization, resolution) in functions in mesh.f90
2012-04-11 17:28:08 +00:00
Martin Diehl f2da887899 added missing ":" in mesh.f90, introduced absolute stress tolerance for spectral solver in numerics.config/numerics.f90 2012-04-11 12:57:25 +00:00
Martin Diehl 17826d7c98 now initializing planner flag for fftw with useful value even if init wasn't executed 2012-03-26 10:03:39 +00:00
Franz Roters 7947ae36b3 changed default value of err_div_tol 2012-03-22 10:33:54 +00:00
Martin Diehl dbdc7ddfa2 debug.config, debug.f90, DAMASK_abaqus_exp.f, DAMASK_abaqus_std.f: changed to new debug scheme (wasn't working)
lattice.f90, FEsolving.f90: explicitly defined public functions and variables, all others are now private
numerics.f90: changed output format of real numbers, now instead of 0.1eX 1.0e(X-1) is printed to screen
Makefile: now using correct Optimization flags for OPTIMIZATION=AGGRESSIVE
DAMASK_spectral_AL.f90: improved, but still testing. Stress BCs now seem to be handled correctly
2012-03-20 18:01:31 +00:00
Pratheek Shanthraj c2f5cebacb simplified analytic jacobian calculation. removed Lpfrac, time_sensitive. introduced rate_sensitivity flag when calling crystallite_stressAndItsTangent that is currently set to .false. and is to be set according to which dPdF the FE solver is asking for 2012-03-14 13:56:50 +00:00
Martin Diehl 2a7888c7e1 removed (in IO.f90) a dangerous initialization statement.
Please read http://www.cs.rpi.edu/~szymansk/OOF90/bugs.html#4
for more details.

Other files are just a little bit polished
2012-03-07 10:07:29 +00:00
Pratheek Shanthraj 17e9698659 added time_sensitive flag to ignore or add time sensitive component to analytic jacobian (should be close to perturbed jacobian when ignored)
now uses sub_dt for analytic jacobian calculations
bug fixes
2012-03-01 19:42:43 +00:00
Franz Roters 1042ac018f output values used for Lp_frac and analyticJaco
improved comment for Lp_frac on numerics.config
2012-02-24 08:21:18 +00:00
Martin Diehl a98832100f introduced itmin parameter for spectral code for defining minimum number of cycles
removed simplified_algorthim flag because the basic scheme using the polarization field will not be implemented
introduced divergence_correction flag for making divergence criterion resolution-independent (still experimental and not set by default)
corrected output and restart frequency (now modulo on incs of current load case)
2012-02-23 16:43:17 +00:00
Pratheek Shanthraj b9a82156c9 crystallite.f90: can now calculate analytic jacobian by setting analyticJaco = 1 in numerics.config
math.f90: added math_mul3333xx3333…

numerics.f90: to read in analyticJaco and Lp_frac
2012-02-22 20:11:09 +00:00
Martin Diehl 87a83d82b7 changed assumed arrays (:) to properly defined ones (gfortran 4.7 was complaining) and remove use statements that are not needed 2012-02-21 15:39:36 +00:00
Martin Diehl 6c0f9d163b polishing: removed variable names like 'unit' and 'data' that are keywords of fortran and ensured that integer and real precision matches independent of machine standard.
removed cut_off parameter for damask_spectral
removed outpot of derived divergence measures and added RMS output in brackets
added comments and options to the makefile
2012-02-15 18:58:38 +00:00
Christoph Kords c786336af3 reordered (and partly redistributed) error message identifiers, deleted those which are not in use anymore.
all constitutive as well numerics now raises an error, if an unknown keyword is found in the respective config file
2012-02-13 17:41:27 +00:00
Martin Diehl f03e7c459c small polishing, exchanged stops in math.f90 with calls to IO_error 2012-02-13 14:08:07 +00:00
Martin Diehl cff66b5cc3 removed implicit type castings 2012-02-10 11:24:53 +00:00
Martin Diehl 195491aaaa added missing pInts 2012-02-09 12:35:55 +00:00
Martin Diehl c5128e94eb some f2008 standard related correction i didn't check in last time 2012-02-01 20:20:05 +00:00
Martin Diehl 800e291240 made code standard conform to Fortran 2008 (ignoring warning concerning comments beyond character 132). Basically, changing "x" format specifier to "Nx" ("1x") plus removing $ format specifier
added compiler switches for gfortran and ifort to check for standard conformity
old gnu compilers <4.4 are not longer supported because they don't provide the c binding for fftw
2012-01-31 19:18:55 +00:00
Martin Diehl 80583fefb5 added compilation_info.f90, to store compilation date,time and compiler info in each file
added #include statement at each init() routine
2012-01-31 14:54:49 +00:00
Martin Diehl 9464937db7 merge declaration and initialization with standard values
corrected handling of $DAMASK_NUM_THREADS
2012-01-30 20:16:19 +00:00
Martin Diehl eeda357710 N^2 initialization loop (former spectralPictureMode) rewritten in material.f90
additional output in DAMASK_spectral_interface.f90 
132 character cut off in constitutive_nonlocal.f90
rounding error in math.f90 complex number initialization (1.0_pReal)*2.0_pReal*pi
new $DAMASK_NUM_THREADS warning in numerics.f90 / IO.f90
polishing in DAMASK_spectral.f90
2012-01-30 13:52:41 +00:00
Martin Diehl 3e521e32a6 indroduced 3 more flags for fine control of spectral algorithm 2012-01-25 08:56:46 +00:00
Martin Diehl 3a22bf7e27 changed fftw from legacy fortran to new (2003) fortran (calling c routines directly)
renamed "steps" consequently to "incs"
moved kdtree2 to math.f90, put original source to private folder
2012-01-13 16:18:16 +00:00
Martin Diehl ace6851389 moved all routines from postprocessingMath to math.90, renamed the module to DAMASK, changed scripts and interfaces accordingly.
polished math.f90 (mainly added _pInt/_pReal and intent(in/out))
curl_fft is still a dummy function
2011-12-01 12:01:13 +00:00
Martin Diehl 566f16b6e9 implemented calculation of divergence in real space, polished spectral debugging 2011-11-21 18:12:40 +00:00
Martin Diehl 5ef73e164a restructured algorithm: moved into loop to reallocate fields and replan FFTW in case resolution changes during runtime ==> regridding
introduced parameters for selective debugging of spectral code and partly introduced the advanced divergence calculation again which is controlled by debug.config
added switch in numerics to control divergence behavior (uncorrected and corrected by phenomenological factor)
added precision directive to all values I found
2011-11-15 17:54:18 +00:00
Martin Diehl ee7022d8cf correctet random seed generation to work with gfortran. 2011-11-04 10:29:35 +00:00
Martin Diehl 15c356c3a7 some small improvements regarding the rotation of the loadcase frame 2011-10-25 13:38:24 +00:00
Martin Diehl c13aa2a829 first try of implementing a rotation of the loadcase coordinate system. Seems to work so far for one loadcase and homogeneous materials. 2011-10-24 18:26:34 +00:00
Martin Diehl a8a53ee525 added two parameters to control behavior of FFTW, timelimit is not working at the moment
remove fftw3.f as it is not needed anymore
!incremental update, wait for commit of damask_spectral.f90 before checking out
2011-10-18 09:16:18 +00:00
Philip Eisenlohr c7c541f393 corrected typos and such 2011-09-13 15:57:58 +00:00
Martin Diehl 4fb1cb8f87 merged calcmodes, i.e. equilibrium and fulfilling of stress BC is done in one step,
made convergence independent of size and resolution,
polishing output in DAMASK_spectral.f90
added function to compute eigenvalues without eigenvectors and function to convert a 3x3 logical to a 9 vector in math.f90
removed obsolete variable in numerics.f90
2011-08-26 14:06:37 +00:00
Onur Guevenc 907965272b added option to build DAMASK_spectral without openMP (make OPENMP=OFF)
fixed bug in bc_temperature assignment that was hitting memory.
Temperature is taken from the first loadcase and evolves from there in an adiabatic fashion for the moment. I.e. T-specifications from later loadcases are ignored...
2011-08-03 17:57:28 +00:00
Franz Roters aa714a3d84 some textconstants were wider than specified in the format string, this might have caused Abaqus to crash due to an illegal memory reference (signal 11) 2011-07-29 14:54:26 +00:00
Martin Diehl 72d20875de added some switches and variables to the makefile to make it more flexible
DAMASK_spectral.f90 is a "debug version" with a number of different criteria to determine divergence. will be removed later on.
2011-07-25 16:30:21 +00:00
Martin Diehl 8153cd50b4 added spectral numeric parameters to numerics.config, changed values for spectral numeric parameters in numerics.f90 to more suitable values for new method for determination of divergence in Fourier space 2011-07-11 14:28:56 +00:00
Franz Roters 2418dfe96d changed MPIE_NUM_THREADS to DAMASK_NUM_THREADS 2011-05-28 09:42:25 +00:00
Franz Roters c1b8391110 changed enconding of all source files to UTF-8 without BOM (signature) Codepage 65001 2011-04-07 07:20:28 +00:00
Franz Roters fcdb805225 added copyright text to all f90 (free) format files 2011-04-04 14:09:54 +00:00
Christoph Kords 235266b169 openmp parallelization working again (at least for j2 and nonlocal constitutive model).
In order to keep it like that, please follow these simple rules:

DON'T use implicit array subscripts:
example:    real, dimension(3,3) :: A,B
                  A(:,2) = B(:,1)               <--- DON'T USE
                  A(1:3,2) = B(1:3,1)       <--- BETTER USE
In many cases the use of explicit array subscripts is inevitable for parallelization. Additionally, it is an easy means to  prevent memory leaks.

Enclose all write statements with the following:
!$OMP CRITICAL (write2out)
<your write statement>
!$OMP END CRITICAL (write2out)

Whenever you change something in the code and are not sure if it affects parallelization and leads to nonconforming behavior, please ask me and/or Franz to check this.
2011-03-17 10:46:17 +00:00
Christoph Kords 430966eb20 sorry, forgot to commit the numerics.f90, too 2011-02-23 12:30:52 +00:00
Martin Diehl 8dd1a694a3 extended IO to cope with different name for solverJob and Model
polishing, added error codes
added FFTW library files
2011-02-21 14:37:38 +00:00
Martin Diehl 7a7ca1aab7 mpie_spectral and mpie_interface: changed workingdir from pathToLoadFile to pathToGeomFile
mpie_spectral and numerics: added switch to prevent pre calculation of gamma_hat. slower, but saves memory
3Dvisualize: started to add support for gmsh (not fully working yet)
reconstruct: new version of f2py/Fortran subroutines for output of results from spectral method
2011-02-07 14:35:42 +00:00
Martin Diehl fec2c14a4e removed hard-coded tolerances from mpie_spectral and put them to numerics/IO
removed storage of full cauchy stres field from mpie_spectral.f90, only average is stored now
added cauchy stress and von mises equivalent calculation to spectral post.
2011-01-31 17:07:42 +00:00
Franz Roters 096a4803b0 some polishing concerning openMP initialization
number of threads is now written to *.out file
2010-12-02 11:04:29 +00:00
Philip Eisenlohr 0dd99cb965 lattice: (re)introduced _symmetryType function to replace unsafe lookup array
numerics: polishing

mpie_cpfem_marc: polishing

..powerlaw: aware of symmetryType function

crystallite: aware of symmetryType function, smaller leapfrog acceleration

IO: new warning 101

CPFEM: range of odd stress is now -1e15...+1e15, H_sym is used for stiffness
2010-11-03 14:58:11 +00:00
Martin Diehl 3c502561ee added matrix multiplication 3333x33 to math.f90
added some parameters for spectral method to numerics.f90 (tolerance)
changed error message concerning spectral method in IO.f90
corrected calculation of stress BC in mpie_spectral.f90
2010-10-13 16:04:44 +00:00
Christoph Kords fce7590c17 * now able to choose method for state integration (integrator and integratorStiffness in numerics.config); standard is "Fixed Point Iteration", which is basically the same as before; others available are "Explicit Euler", "AdaptiveEuler", "Classical Runge-Kutta" and "Runge-Kutta Cash-Karp"
* now remembering stiffness similar to how we do it for Lp etc.; avoids undefined stiffness values for nonconverged stiffness calculation

* non-local stuff:
   * changed non-local kinetics (Gilman2002)
   * enforce zero shearrate for overall carrrier density below relevant density
   * enforce zero density for those states that become negative and were below relevant density before
   * dislocation velocity is not limited by V^(1/3) / dt anymore
2010-10-01 12:18:49 +00:00
Christoph Kords dba4ae7ef1 new numerics parameter "defgradTolerance" replaces "relevantStrain" in cpfem, since "relevantStrain" is also used in crystallite but in a different context.
"defgradTolerance" gets the same standard value as "relevantStrain" so calculations should be consistent with older ones
2010-05-20 14:55:11 +00:00
Denny Tjahjanto 9026cc4016 again corrections. but this version must work. 2010-03-24 16:23:21 +00:00
Denny Tjahjanto 40b1478dac the latest RGC model + corrections for "element homogeneous" feature 2010-03-24 13:20:12 +00:00
Philip Eisenlohr 8c8ed34356 reworked crystallite part to allow for flexible user output
--> new "crystallite" part in config file
--> new "crystallite" option for microstructures
--> new output file "...job.outputCrystallite" to be used in conjunction with marc_addUserOutput for meaningful naming of User Defined Vars.
2010-02-25 17:39:11 +00:00
Denny Tjahjanto 3ab5cdc770 Additional feature to the RGC scheme: The volumetric consistency constraint. This is implemented by penalizing any volumetric discrepancy which occurs due to severe relaxation. The penalty for volume inconsistency is described using a power-law model. The setting for this function can be done in the numerics.config via three new parameters, i.e., maxvoldiscrepancy_RGC, voldiscrepancymod_RGC and discrepancypower_RGC. For monintoring, an extra output variable in prescribed in the material.config in the RGC section, namely "(output) volumediscrepancy".
IO.f90 and numerics.f90 has been modified accordingly to accommodate these changes
2009-12-16 16:20:53 +00:00
Denny Tjahjanto 59d22d47b2 introduction of a possibility to have homogeneous element (all ips in one element are identical, sort of reduced integration)
and bugs-fixing in crystallite.f90, homogenization_RGC.f90, numerics.f90.
2009-11-24 15:00:25 +00:00
Denny Tjahjanto 6702cb3baa Introduction of a numerical viscosity into the RGC scheme to improve the convergent behavior and the numerical stability of the scheme (see: homogenization_RGC.f90). These changes have been incorporated in all related subroutines (homogenization.f90, IO.f90, numerics.config and numerics.f90). 2009-11-17 13:42:38 +00:00
Denny Tjahjanto cb88019aa6 introduced a flexibility in cut-backing scheme in homogenization.f90 and in crystallite.f90:
(1) subStepSizeHomog and subStepSizeCryst := size of substep when cut-back is applied (initially was hard-coded).
(2) stepIncreaseHomog and stepIncreaseCryst := step increase when calculation for substep converge (was also hardcoded).

introduced a possibility to choose different finite difference scheme, i.e., forward-, backward- and central-difference, for computing grain numerical tangent. note that central-difference scheme will slow down the computation significantly. please use it only if necessary.

parameters to set these new features have been included in numerics.f90 and numerics.config, whereas corresponding error messages have been introduced in the IO.f90
2009-11-10 13:36:27 +00:00
Denny Tjahjanto 2068346f6d just small changes in the 'default' value of RGC numerical parameters. 2009-10-30 09:54:52 +00:00
Christoph Kords c766ba2e3a minimum substepping size in homogenization and crystallite is now controlled by two independent parameters subStepMinHomog and subStepMinCryst respectively.
deleted flush statements where they are not needed, since they seriously slow down computation.
2009-10-26 16:43:43 +00:00
Philip Eisenlohr a94e551c5f absolute tolerance was just fine -- residuum is in Lp not in stress. Hence, unit is strain and not Pa... 2009-10-19 12:53:56 +00:00
Philip Eisenlohr 5a5d461a30 changed abs tolerance in stress loop to 1 Pa (from 1e-8 Pa ..?) 2009-10-19 12:44:20 +00:00