https://github.com/geodynamics/citcoms
Revision bcf06ab870d4cfd4a7c8594146ed51e41b23d5f9 authored by Eh Tan on 09 August 2007, 22:57:28 UTC, committed by Eh Tan on 09 August 2007, 22:57:28 UTC
Two non-dimensional parameters are added: "dissipation_number" and "gruneisen" under the Solver component. One can use the original incompressible solver by setting "gruneisen=0". The code will treat this as "gruneisen=infinity". Setting non-zero value to "gruneisen" will switch to compressible solver. One can use the TALA solver for incompressible case by setting "gruneisen" to a non-zero value while setting "dissipation_number=0". This is useful when debugging the compressible solver. Two implementations are available: one by Wei Leng (U. Colorado) and one by Eh Tan (CIG). Leng's version uses the original conjugate gradient method for the Uzawa iteration and moves the contribution of compressibility to the RHS, similar to the method of Ita and King, JGR, 1994. Tan's version uses the bi-conjugate gradient stablized method for the Uzawa iteration, similar to the method of Tan and Gurnis, JGR, 2007. Both versions agree very well. In the benchmark case, 33x33x33 nodes per cap, Di/gamma=1.0, Ra=1.0, delta function of load at the mid mantle, the peak velocity differs by only 0.007%. Leng's version is enabled by default. Edit function solve_Ahat_p_fhat() in lib/Stokes_flow_Incomp.c to switch to Tan's version.
1 parent 91bcb85
Tip revision: bcf06ab870d4cfd4a7c8594146ed51e41b23d5f9 authored by Eh Tan on 09 August 2007, 22:57:28 UTC
Finished the compressible Stokes solver for TALA.
Finished the compressible Stokes solver for TALA.
Tip revision: bcf06ab
exchange.py
#!/usr/bin/env python
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
#<LicenseText>
#
# CitcomS.py by Eh Tan, Eun-seo Choi, and Pururav Thoutireddy.
# Copyright (C) 2002-2005, California Institute of Technology.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#</LicenseText>
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
from mpi.Application import Application
import journal
class TestExchanger(Application):
def __init__(self, name="citcom"):
Application.__init__(self, name)
self.exchanger = None
return
def run(self):
layout = self.inventory.layout
layout.initialize(self)
self.findLayout(layout)
exchanger = self.exchanger
if exchanger:
self.test(exchanger)
return
def test(self, exchanger):
# testing exchanger creation
exchanger.selectModule()
exchanger.createExchanger(self)
#print exchanger.name, exchanger.exchanger
# testing boundary creation and exchange
exchanger.findBoundary()
print exchanger.name, ": boundary found"
# testing applyBoundaryConditions
exchanger.applyBoundaryConditions()
print exchanger.name, ": applyBoundaryConditions worked"
# testing initTemperature
#exchanger.initTemperature()
#print exchanger.name, ": temperature transferred"
# select dt
try:
# success if exchanger is a FGE
exchanger.fge_t
dt = 0.4
except:
# exception if exchanger is a CGE
dt = 1
# testing dt exchanging
print "%s - old dt = %g exchanged dt = %g old dt = %g" % (
exchanger.name, dt,
exchanger.module.exchangeTimestep(exchanger.exchanger, dt),
dt)
# testing exchangeSignal
steps = 2*3 + 1
for step in range(steps):
time = exchanger.stableTimestep(dt)
print "%s - step %d: %g" % (exchanger.name, step, time)
exchanger.applyBoundaryConditions()
if step == steps-1:
done = True
else:
done = False
done = exchanger.endTimestep(done)
if done:
break
return
def findLayout(self, layout):
import ExchangerLib
if layout.coarse:
self.exchanger = self.inventory.coarse
self.communicator = layout.coarse
self.all_variables = ExchangerLib.CoarsereturnE()
elif layout.fine:
self.exchanger = self.inventory.fine
self.communicator = layout.fine
self.all_variables = ExchangerLib.FinereturnE()
else:
import journal
journal.warning(self.name).log("node '%d' is an orphan" % layout.rank)
self.intercomm = layout.intercomm
self.rank = layout.rank
self.nodes = layout.nodes
self.leader = layout.leader
self.remoteLeader = layout.remoteLeader
print "%s exchanger: rank=%d leader=%d remoteLeader=%d" % (
self.exchanger.name, self.rank, self.leader, self.remoteLeader)
return
class Inventory(Application.Inventory):
import pyre.inventory
import CitcomS.Components.Exchanger as Exchanger
import CitcomS.Controller as Controller
import CitcomS.Layout as Layout
controller = pyre.inventory.facility("controller", default=Controller.controller())
layout = pyre.inventory.facility("layout", default=Layout.layout())
coarse = pyre.inventory.facility("coarse", default=Exchanger.coarsegridexchanger("coarse"))
fine = pyre.inventory.facility("fine", default=Exchanger.finegridexchanger("fine"))
# main
if __name__ == "__main__":
import mpi
# testing Exchangermodule.so
import ExchangerLib
if not mpi.world().rank:
print ExchangerLib.copyright()
print dir(ExchangerLib)
import journal
#journal.debug("Array2D").activate()
journal.debug("Exchanger").activate()
journal.info(" X").activate()
journal.info(" proc").activate()
journal.info(" bid").activate()
app = TestExchanger("test")
app.main()
# version
__id__ = "$Id$"
# End of file
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