Commit 2e524c66 authored by Matthieu Schaller's avatar Matthieu Schaller
Browse files

New test to make sure the symmetric and non-symmetric versions of the hydro interactions work.

parent b3947c40
......@@ -53,6 +53,7 @@ tests/testSingle
tests/testTimeIntegration
tests/testSPHStep
tests/testKernel
tests/testSymmetry
tests/testMaths
tests/testParser
tests/parser_output.yml
......
......@@ -21,12 +21,13 @@ AM_CFLAGS = -I$(top_srcdir)/src $(HDF5_CPPFLAGS) -DTIMER
AM_LDFLAGS = ../src/.libs/libswiftsim.a $(HDF5_LDFLAGS) $(HDF5_LIBS)
# List of programs and scripts to run in the test suite
TESTS = testGreetings testMaths testReading.sh testSingle testPair.sh testPairPerturbed.sh \
test27cells.sh test27cellsPerturbed.sh testParser.sh testKernel testSPHStep
TESTS = testGreetings testMaths testReading.sh testSingle testKernel testSymmetry \
testPair.sh testPairPerturbed.sh test27cells.sh test27cellsPerturbed.sh \
testParser.sh testSPHStep
# List of test programs to compile
check_PROGRAMS = testGreetings testMaths testReading testSingle testTimeIntegration \
testSPHStep testPair test27cells testParser testKernel testInteractions
check_PROGRAMS = testGreetings testMaths testReading testSingle testKernel testSymmetry \
testTimeIntegration testSPHStep testPair test27cells testParser testInteractions
# Sources for the individual programs
testGreetings_SOURCES = testGreetings.c
......@@ -35,6 +36,10 @@ testMaths_SOURCES = testMaths.c
testReading_SOURCES = testReading.c
testKernel_SOURCES = testKernel.c
testSymmetry_SOURCES = testSymmetry.c
testTimeIntegration_SOURCES = testTimeIntegration.c
testSPHStep_SOURCES = testSPHStep.c
......@@ -47,8 +52,6 @@ test27cells_SOURCES = test27cells.c
testParser_SOURCES = testParser.c
testKernel_SOURCES = testKernel.c
testInteractions_SOURCES = testInteractions.c
# Files necessary for distribution
......
/*******************************************************************************
* This file is part of SWIFT.
* Copyright (C) 2016 Matthieu Schaller (matthieu.schaller@durham.ac.uk).
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 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 Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
#include "../config.h"
#include <fenv.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "swift.h"
int main(int argc, char *argv[]) {
/* Choke if need be */
feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW);
/* Create two random particles (don't do this at home !) */
struct part pi, pj;
for (size_t i = 0; i < sizeof(struct part) / sizeof(float); ++i) {
*(((float *)&pi) + i) = (float)random_uniform(0., 2.);
*(((float *)&pj) + i) = (float)random_uniform(0., 2.);
}
/* Make the particle smoothing length and position reasonable */
for (size_t i = 0; i < 3; ++i) pi.x[0] = random_uniform(-1., 1.);
for (size_t i = 0; i < 3; ++i) pj.x[0] = random_uniform(-1., 1.);
pi.h = 2.f;
pj.h = 2.f;
pi.id = 1;
pj.id = 2;
/* Make an xpart companion */
struct xpart xpi, xpj;
bzero(&xpi, sizeof(struct xpart));
bzero(&xpj, sizeof(struct xpart));
/* Make some copies */
struct part pi2, pj2;
memcpy(&pi2, &pi, sizeof(struct part));
memcpy(&pj2, &pj, sizeof(struct part));
int i_ok = memcmp(&pi, &pi2, sizeof(struct part));
int j_ok = memcmp(&pj, &pj2, sizeof(struct part));
if (i_ok != 0) error("Particles 'pi' do not match after copy");
if (j_ok != 0) error("Particles 'pj' do not match after copy");
/* Compute distance vector */
float dx[3];
dx[0] = pi.x[0] - pj.x[0];
dx[1] = pi.x[1] - pj.x[1];
dx[2] = pi.x[2] - pj.x[2];
float r2 = dx[0] * dx[0] + dx[1] * dx[1] + dx[2] * dx[2];
/* --- Test the density loop --- */
/* Call the symmetric version */
runner_iact_density(r2, dx, pi.h, pj.h, &pi, &pj);
/* Call the non-symmetric version */
runner_iact_nonsym_density(r2, dx, pi2.h, pj2.h, &pi2, &pj2);
dx[0] = -dx[0];
dx[1] = -dx[1];
dx[2] = -dx[2];
runner_iact_nonsym_density(r2, dx, pj2.h, pi2.h, &pj2, &pi2);
/* Check that the particles are the same */
i_ok = memcmp(&pi, &pi2, sizeof(struct part));
j_ok = memcmp(&pj, &pj2, sizeof(struct part));
if (i_ok) error("Particles 'pi' do not match after density");
if (j_ok) error("Particles 'pj' do not match after density");
/* --- Test the force loop --- */
/* Call the symmetric version */
runner_iact_force(r2, dx, pi.h, pj.h, &pi, &pj);
/* Call the non-symmetric version */
runner_iact_nonsym_force(r2, dx, pi2.h, pj2.h, &pi2, &pj2);
dx[0] = -dx[0];
dx[1] = -dx[1];
dx[2] = -dx[2];
runner_iact_nonsym_force(r2, dx, pj2.h, pi2.h, &pj2, &pi2);
/* Check that the particles are the same */
i_ok = memcmp(&pi, &pi2, sizeof(struct part));
j_ok = memcmp(&pj, &pj2, sizeof(struct part));
if (i_ok) error("Particles 'pi' do not match after force");
if (j_ok) error("Particles 'pj' do not match after force");
return 0;
}
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