OpenCL and CUDA tests are run three times, once for each precision model

platforms/cuda/tests/TestCudaLocalEnergyMinimizer.cpp

@@ -45,6 +45,8 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 void testHarmonicBonds() {
     const int numParticles = 10;
     System system;
@@ -64,7 +66,6 @@ void testHarmonicBonds() {
     // Minimize it and check that all bonds are at their equilibrium distances.
 
     VerletIntegrator integrator(0.01);
-    CudaPlatform platform;
     Context context(system, integrator, platform);
     context.setPositions(positions);
     LocalEnergyMinimizer::minimize(context, 1e-5);
@@ -105,7 +106,6 @@ void testLargeSystem() {
 
     // Minimize it and verify that the energy has decreased.
 
-    CudaPlatform platform;
     VerletIntegrator integrator(0.01);
     Context context(system, integrator, platform);
     context.setPositions(positions);
@@ -167,7 +167,6 @@ void testVirtualSites() {
 
     // Minimize it and verify that the energy has decreased.
     
-    CudaPlatform platform;
     VerletIntegrator integrator(0.01);
     Context context(system, integrator, platform);
     context.setPositions(positions);
@@ -199,8 +198,10 @@ void testVirtualSites() {
     ASSERT(forceNorm < 3*tolerance);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testHarmonicBonds();
         testLargeSystem();
         testVirtualSites();

platforms/cuda/tests/TestCudaMonteCarloBarostat.cpp

@@ -49,8 +49,9 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 void testChangingBoxSize() {
-    CudaPlatform platform;
     System system;
     system.setDefaultPeriodicBoxVectors(Vec3(4, 0, 0), Vec3(0, 5, 0), Vec3(0, 0, 6));
     system.addParticle(1.0);
@@ -100,7 +101,6 @@ void testIdealGas() {
 
     // Create a gas of noninteracting particles.
 
-    CudaPlatform platform;
     System system;
     system.setDefaultPeriodicBoxVectors(Vec3(initialLength, 0, 0), Vec3(0, 0.5*initialLength, 0), Vec3(0, 0, 2*initialLength));
     vector<Vec3> positions(numParticles);
@@ -146,7 +146,6 @@ void testRandomSeed() {
     const int numParticles = 8;
     const double temp = 100.0;
     const double pressure = 1.5;
-    CudaPlatform platform;
     System system;
     system.setDefaultPeriodicBoxVectors(Vec3(8, 0, 0), Vec3(0, 8, 0), Vec3(0, 0, 8));
     VerletIntegrator integrator(0.01);
@@ -219,7 +218,6 @@ void testWater() {
 
     // Create a box of SPC water molecules.
 
-    CudaPlatform platform;
     System system;
     system.setDefaultPeriodicBoxVectors(Vec3(gridSize*spacing, 0, 0), Vec3(0, gridSize*spacing, 0), Vec3(0, 0, gridSize*spacing));
     NonbondedForce* nonbonded = new NonbondedForce();
@@ -273,8 +271,10 @@ void testWater() {
     ASSERT_USUALLY_EQUAL_TOL(1.0, density, 0.02);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testChangingBoxSize();
         testIdealGas();
         testRandomSeed();

platforms/cuda/tests/TestCudaMultipleForces.cpp

@@ -52,6 +52,8 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 const double TOL = 1e-4;
 
 void testForces() {
@@ -78,9 +80,8 @@ void testForces() {
     ReferencePlatform ref;
     VerletIntegrator integrator1(0.01);
     Context context1(system, integrator1, ref);
-    CudaPlatform cl;
     VerletIntegrator integrator2(0.01);
-    Context context2(system, integrator2, cl);
+    Context context2(system, integrator2, platform);
     OpenMM_SFMT::SFMT sfmt;
     init_gen_rand(0, sfmt);
     vector<Vec3> positions(numParticles);
@@ -97,8 +98,10 @@ void testForces() {
     ASSERT_EQUAL_TOL(state1.getPotentialEnergy(), state2.getPotentialEnergy(), TOL);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testForces();
     }
     catch(const exception& e) {

platforms/cuda/tests/TestCudaNonbondedForce.cpp

@@ -53,10 +53,11 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 const double TOL = 1e-5;
 
 void testCoulomb() {
-    CudaPlatform platform;
     System system;
     system.addParticle(1.0);
     system.addParticle(1.0);
@@ -79,7 +80,6 @@ void testCoulomb() {
 }
 
 void testLJ() {
-    CudaPlatform platform;
     System system;
     system.addParticle(1.0);
     system.addParticle(1.0);
@@ -104,7 +104,6 @@ void testLJ() {
 }
 
 void testExclusionsAnd14() {
-    CudaPlatform platform;
     System system;
     NonbondedForce* nonbonded = new NonbondedForce();
     for (int i = 0; i < 5; ++i) {
@@ -192,7 +191,6 @@ void testExclusionsAnd14() {
 }
 
 void testCutoff() {
-    CudaPlatform platform;
     System system;
     system.addParticle(1.0);
     system.addParticle(1.0);
@@ -229,7 +227,6 @@ void testCutoff() {
 }
 
 void testCutoff14() {
-    CudaPlatform platform;
     System system;
     VerletIntegrator integrator(0.01);
     NonbondedForce* nonbonded = new NonbondedForce();
@@ -325,7 +322,6 @@ void testCutoff14() {
 }
 
 void testPeriodic() {
-    CudaPlatform platform;
     System system;
     system.addParticle(1.0);
     system.addParticle(1.0);
@@ -366,7 +362,6 @@ void testLargeSystem() {
     const double cutoff = 2.0;
     const double boxSize = 20.0;
     const double tol = 2e-3;
-    CudaPlatform cl;
     ReferencePlatform reference;
     System system;
     for (int i = 0; i < numParticles; i++)
@@ -404,7 +399,7 @@ void testLargeSystem() {
     system.addForce(bonds);
     VerletIntegrator integrator1(0.01);
     VerletIntegrator integrator2(0.01);
-    Context cuContext(system, integrator1, cl);
+    Context cuContext(system, integrator1, platform);
     Context referenceContext(system, integrator2, reference);
     cuContext.setPositions(positions);
     cuContext.setVelocities(velocities);
@@ -450,7 +445,6 @@ void testBlockInteractions(bool periodic) {
     const int numParticles = blockSize*numBlocks;
     const double cutoff = 1.0;
     const double boxSize = (periodic ? 5.1 : 1.1);
-    CudaPlatform cl;
     System system;
     VerletIntegrator integrator(0.01);
     NonbondedForce* nonbonded = new NonbondedForce();
@@ -467,7 +461,7 @@ void testBlockInteractions(bool periodic) {
     nonbonded->setCutoffDistance(cutoff);
     system.setDefaultPeriodicBoxVectors(Vec3(boxSize, 0, 0), Vec3(0, boxSize, 0), Vec3(0, 0, boxSize));
     system.addForce(nonbonded);
-    Context context(system, integrator, cl);
+    Context context(system, integrator, platform);
     context.setPositions(positions);
     ContextImpl* contextImpl = *reinterpret_cast<ContextImpl**>(&context);
     CudaPlatform::PlatformData& data = *static_cast<CudaPlatform::PlatformData*>(contextImpl->getPlatformData());
@@ -628,7 +622,6 @@ void testDispersionCorrection() {
     int numParticles = gridSize*gridSize*gridSize;
     double boxSize = gridSize*0.5;
     double cutoff = boxSize/3;
-    CudaPlatform platform;
     System system;
     VerletIntegrator integrator(0.01);
     NonbondedForce* nonbonded = new NonbondedForce();
@@ -695,7 +688,6 @@ void testChangingParameters() {
     const double cutoff = 2.0;
     const double boxSize = 20.0;
     const double tol = 2e-3;
-    CudaPlatform cl;
     ReferencePlatform reference;
     System system;
     for (int i = 0; i < numParticles; i++)
@@ -728,7 +720,7 @@ void testChangingParameters() {
     
     VerletIntegrator integrator1(0.01);
     VerletIntegrator integrator2(0.01);
-    Context cuContext(system, integrator1, cl);
+    Context cuContext(system, integrator1, platform);
     Context referenceContext(system, integrator2, reference);
     cuContext.setPositions(positions);
     referenceContext.setPositions(positions);
@@ -761,7 +753,6 @@ void testChangingParameters() {
 }
 
 void testParallelComputation(bool useCutoff) {
-    CudaPlatform platform;
     System system;
     const int numParticles = 200;
     for (int i = 0; i < numParticles; i++)
@@ -820,8 +811,10 @@ void testParallelComputation(bool useCutoff) {
         ASSERT_EQUAL_VEC(state1.getForces()[i], state2.getForces()[i], 1e-5);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testCoulomb();
         testLJ();
         testExclusionsAnd14();

platforms/cuda/tests/TestCudaPeriodicTorsionForce.cpp

@@ -46,10 +46,11 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 const double TOL = 1e-5;
 
 void testPeriodicTorsions() {
-    CudaPlatform platform;
     System system;
     system.addParticle(1.0);
     system.addParticle(1.0);
@@ -93,7 +94,6 @@ void testPeriodicTorsions() {
 }
 
 void testParallelComputation() {
-    CudaPlatform platform;
     System system;
     const int numParticles = 200;
     for (int i = 0; i < numParticles; i++)
@@ -121,8 +121,10 @@ void testParallelComputation() {
         ASSERT_EQUAL_VEC(state1.getForces()[i], state2.getForces()[i], 1e-5);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testPeriodicTorsions();
         testParallelComputation();
     }

platforms/cuda/tests/TestCudaRBTorsionForce.cpp

@@ -46,10 +46,11 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 const double TOL = 1e-5;
 
 void testRBTorsions() {
-    CudaPlatform platform;
     System system;
     system.addParticle(1.0);
     system.addParticle(1.0);
@@ -112,7 +113,6 @@ void testRBTorsions() {
 }
 
 void testParallelComputation() {
-    CudaPlatform platform;
     System system;
     const int numParticles = 200;
     for (int i = 0; i < numParticles; i++)
@@ -140,8 +140,10 @@ void testParallelComputation() {
         ASSERT_EQUAL_VEC(state1.getForces()[i], state2.getForces()[i], 1e-5);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testRBTorsions();
         testParallelComputation();
     }

platforms/cuda/tests/TestCudaRandom.cpp

@@ -47,13 +47,14 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 void testGaussian() {
     int numAtoms = 5000;
     System system;
     for (int i = 0; i < numAtoms; i++)
         system.addParticle(1.0);
-    CudaPlatform platform;
-    CudaPlatform::PlatformData platformData(system, "", "true", "single",
+    CudaPlatform::PlatformData platformData(system, "", "true", platform.getPropertyDefaultValue("CudaPrecision"),
             platform.getPropertyDefaultValue(CudaPlatform::CudaCompiler()), platform.getPropertyDefaultValue(CudaPlatform::CudaTempDirectory()));
     CudaContext& context = *platformData.contexts[0];
     context.initialize();
@@ -93,7 +94,6 @@ void testRandomVelocities() {
     
     const int numParticles = 10000;
     const double temperture = 100.0;
-    CudaPlatform platform;
     System system;
     VerletIntegrator integrator(0.01);
     for (int i = 0; i < numParticles; ++i)
@@ -131,8 +131,10 @@ void testRandomVelocities() {
     ASSERT_USUALLY_EQUAL_TOL(expected, ke, 4/sqrt(numParticles));
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testGaussian();
         testRandomVelocities();
     }

platforms/cuda/tests/TestCudaSettle.cpp

@@ -47,12 +47,13 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 void testConstraints() {
     const int numMolecules = 10;
     const int numParticles = numMolecules*3;
     const int numConstraints = numMolecules*3;
     const double temp = 100.0;
-    CudaPlatform platform;
     System system;
     LangevinIntegrator integrator(temp, 2.0, 0.001);
     integrator.setConstraintTolerance(1e-5);
@@ -103,8 +104,10 @@ void testConstraints() {
     }
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testConstraints();
     }
     catch(const exception& e) {

platforms/cuda/tests/TestCudaSort.cpp

@@ -46,6 +46,8 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 class SortTrait : public CudaSort::SortTrait {
     int getDataSize() const {return 4;}
     int getKeySize() const {return 4;}
@@ -62,8 +64,7 @@ void verifySorting(vector<float> array) {
 
     System system;
     system.addParticle(0.0);
-    CudaPlatform platform;
-    CudaPlatform::PlatformData platformData(system, "", "true", "single",
+    CudaPlatform::PlatformData platformData(system, "", "true", platform.getPropertyDefaultValue("CudaPrecision"),
             platform.getPropertyDefaultValue(CudaPlatform::CudaCompiler()), platform.getPropertyDefaultValue(CudaPlatform::CudaTempDirectory()));
     CudaContext& context = *platformData.contexts[0];
     context.initialize();
@@ -108,8 +109,10 @@ void testLogValues()
     verifySorting(array);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testUniformValues();
         testLogValues();
     }

platforms/cuda/tests/TestCudaVariableLangevinIntegrator.cpp

@@ -48,10 +48,11 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 const double TOL = 1e-5;
 
 void testSingleBond() {
-    CudaPlatform platform;
     System system;
     system.addParticle(2.0);
     system.addParticle(2.0);
@@ -97,7 +98,6 @@ void testSingleBond() {
 void testTemperature() {
     const int numParticles = 8;
     const double temp = 100.0;
-    CudaPlatform platform;
     System system;
     VariableLangevinIntegrator integrator(temp, 2.0, 1e-4);
     NonbondedForce* forceField = new NonbondedForce();
@@ -132,7 +132,6 @@ void testTemperature() {
 void testConstraints() {
     const int numParticles = 8;
     const double temp = 100.0;
-    CudaPlatform platform;
     System system;
     VariableLangevinIntegrator integrator(temp, 2.0, 1e-5);
     integrator.setConstraintTolerance(1e-5);
@@ -175,7 +174,6 @@ void testConstraints() {
 void testRandomSeed() {
     const int numParticles = 8;
     const double temp = 100.0;
-    CudaPlatform platform;
     System system;
     VariableLangevinIntegrator integrator(temp, 2.0, 1e-5);
     NonbondedForce* forceField = new NonbondedForce();
@@ -230,8 +228,10 @@ void testRandomSeed() {
     }
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testSingleBond();
         testTemperature();
         testConstraints();

platforms/cuda/tests/TestCudaVariableVerletIntegrator.cpp

@@ -48,10 +48,11 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 const double TOL = 1e-5;
 
 void testSingleBond() {
-    CudaPlatform platform;
     System system;
     system.addParticle(2.0);
     system.addParticle(2.0);
@@ -89,7 +90,6 @@ void testConstraints() {
     const int numParticles = 8;
     const int numConstraints = 5;
     const double temp = 100.0;
-    CudaPlatform platform;
     System system;
     VariableVerletIntegrator integrator(1e-5);
     integrator.setConstraintTolerance(1e-5);
@@ -150,8 +150,6 @@ void testConstraints() {
 
 void testConstrainedClusters() {
     const int numParticles = 7;
-    const double temp = 500.0;
-    CudaPlatform platform;
     System system;
     VariableVerletIntegrator integrator(1e-5);
     integrator.setConstraintTolerance(1e-5);
@@ -213,8 +211,10 @@ void testConstrainedClusters() {
     ASSERT(context.getState(State::Positions).getTime() > 0.1);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testSingleBond();
         testConstraints();
         testConstrainedClusters();

platforms/cuda/tests/TestCudaVerletIntegrator.cpp

@@ -48,10 +48,11 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 const double TOL = 1e-5;
 
 void testSingleBond() {
-    CudaPlatform platform;
     System system;
     system.addParticle(2.0);
     system.addParticle(2.0);
@@ -90,7 +91,6 @@ void testConstraints() {
     const int numParticles = 8;
     const int numConstraints = 5;
     const double temp = 100.0;
-    CudaPlatform platform;
     System system;
     VerletIntegrator integrator(0.001);
     integrator.setConstraintTolerance(1e-5);
@@ -143,8 +143,6 @@ void testConstraints() {
 
 void testConstrainedClusters() {
     const int numParticles = 7;
-    const double temp = 500.0;
-    CudaPlatform platform;
     System system;
     VerletIntegrator integrator(0.001);
     integrator.setConstraintTolerance(1e-5);
@@ -205,8 +203,10 @@ void testConstrainedClusters() {
     }
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testSingleBond();
         testConstraints();
         testConstrainedClusters();

platforms/cuda/tests/TestCudaVirtualSites.cpp

@@ -50,11 +50,12 @@
 using namespace OpenMM;
 using namespace std;
 
+CudaPlatform platform;
+
 /**
  * Check that massless particles are handled correctly.
  */
 void testMasslessParticle() {
-    CudaPlatform platform;
     System system;
     system.addParticle(0.0);
     system.addParticle(1.0);
@@ -91,7 +92,6 @@ void testMasslessParticle() {
  * Test a TwoParticleAverageSite virtual site.
  */
 void testTwoParticleAverage() {
-    CudaPlatform platform;
     System system;
     system.addParticle(1.0);
     system.addParticle(1.0);
@@ -128,7 +128,6 @@ void testTwoParticleAverage() {
  * Test a ThreeParticleAverageSite virtual site.
  */
 void testThreeParticleAverage() {
-    CudaPlatform platform;
     System system;
     system.addParticle(1.0);
     system.addParticle(1.0);
@@ -170,7 +169,6 @@ void testThreeParticleAverage() {
  * Test an OutOfPlaneSite virtual site.
  */
 void testOutOfPlane() {
-    CudaPlatform platform;
     System system;
     system.addParticle(1.0);
     system.addParticle(1.0);
@@ -220,7 +218,6 @@ void testOutOfPlane() {
  * when using virtual sites.
  */
 void testConservationLaws() {
-    CudaPlatform platform;
     System system;
     NonbondedForce* forceField = new NonbondedForce();
     system.addForce(forceField);
@@ -329,7 +326,6 @@ void testConservationLaws() {
 void testReordering() {
     const double cutoff = 2.0;
     const double boxSize = 20.0;
-    CudaPlatform platform;
     System system;
     NonbondedForce* nonbonded = new NonbondedForce();
     system.addForce(nonbonded);
@@ -430,8 +426,10 @@ void testReordering() {
     }
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("CudaPrecision", string(argv[1]));
         testMasslessParticle();
         testTwoParticleAverage();
         testThreeParticleAverage();

platforms/opencl/tests/CMakeLists.txt

@@ -7,6 +7,8 @@ ENABLE_TESTING()
 # INCLUDE(${CMAKE_CURRENT_SOURCE_DIR}/../FindOpenCL.cmake)
 INCLUDE_DIRECTORIES(${OPENCL_INCLUDE_DIR})
 
+SET(OPENMM_BUILD_OPENCL_DOUBLE_PRECISION_TESTS TRUE CACHE BOOL "Whether to build double precision versions of OpenCL test cases")
+
 SET( INCLUDE_SERIALIZATION FALSE )
 #SET( INCLUDE_SERIALIZATION TRUE )
 
@@ -53,7 +55,11 @@ FOREACH(TEST_PROG ${TEST_PROGS})
         ENDIF( INCLUDE_SERIALIZATION )
 
     ENDIF( ${TEST_ROOT} STREQUAL "TestOpenCLGBSAOBCForce2" )
-    ADD_TEST(${TEST_ROOT} ${EXECUTABLE_OUTPUT_PATH}/${TEST_ROOT})
+    ADD_TEST(${TEST_ROOT}Single ${EXECUTABLE_OUTPUT_PATH}/${TEST_ROOT} single)
+    IF (OPENMM_BUILD_OPENCL_DOUBLE_PRECISION_TESTS)
+        ADD_TEST(${TEST_ROOT}Mixed ${EXECUTABLE_OUTPUT_PATH}/${TEST_ROOT} mixed)
+        ADD_TEST(${TEST_ROOT}Double ${EXECUTABLE_OUTPUT_PATH}/${TEST_ROOT} double)
+    ENDIF(OPENMM_BUILD_OPENCL_DOUBLE_PRECISION_TESTS)
 
     # Link with static library
 #     SET(TEST_STATIC ${TEST_ROOT}Static)

platforms/opencl/tests/TestOpenCLAndersenThermostat.cpp

@@ -48,12 +48,13 @@
 using namespace OpenMM;
 using namespace std;
 
+OpenCLPlatform platform;
+
 void testTemperature() {
     const int numParticles = 8;
     const double temp = 100.0;
     const double collisionFreq = 10.0;
     const int numSteps = 10000;
-    OpenCLPlatform platform;
     System system;
     VerletIntegrator integrator(0.005);
     NonbondedForce* forceField = new NonbondedForce();
@@ -92,7 +93,6 @@ void testConstraints() {
     const double temp = 100.0;
     const double collisionFreq = 10.0;
     const int numSteps = 10000;
-    OpenCLPlatform platform;
     System system;
     VerletIntegrator integrator(0.005);
     NonbondedForce* forceField = new NonbondedForce();
@@ -144,7 +144,6 @@ void testRandomSeed() {
     const int numParticles = 8;
     const double temp = 100.0;
     const double collisionFreq = 10.0;
-    OpenCLPlatform platform;
     System system;
     VerletIntegrator integrator(0.01);
     NonbondedForce* forceField = new NonbondedForce();
@@ -201,8 +200,10 @@ void testRandomSeed() {
     }
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("OpenCLPrecision", string(argv[1]));
         testTemperature();
         testConstraints();
         testRandomSeed();

platforms/opencl/tests/TestOpenCLBrownianIntegrator.cpp

@@ -51,10 +51,11 @@
 using namespace OpenMM;
 using namespace std;
 
+OpenCLPlatform platform;
+
 const double TOL = 1e-5;
 
 void testSingleBond() {
-    OpenCLPlatform platform;
     System system;
     system.addParticle(2.0);
     system.addParticle(2.0);
@@ -91,7 +92,6 @@ void testTemperature() {
     const int numParticles = 8;
     const int numBonds = numParticles-1;
     const double temp = 10.0;
-    OpenCLPlatform platform;
     System system;
     BrownianIntegrator integrator(temp, 2.0, 0.01);
     HarmonicBondForce* forceField = new HarmonicBondForce();
@@ -128,7 +128,6 @@ void testConstraints() {
     const int numParticles = 8;
     const int numConstraints = 5;
     const double temp = 20.0;
-    OpenCLPlatform platform;
     System system;
     BrownianIntegrator integrator(temp, 2.0, 0.001);
     integrator.setConstraintTolerance(1e-5);
@@ -177,7 +176,6 @@ void testRandomSeed() {
     const int numParticles = 8;
     const double temp = 100.0;
     const double collisionFreq = 10.0;
-    OpenCLPlatform platform;
     System system;
     BrownianIntegrator integrator(temp, 2.0, 0.001);
     NonbondedForce* forceField = new NonbondedForce();
@@ -232,8 +230,10 @@ void testRandomSeed() {
     }
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("OpenCLPrecision", string(argv[1]));
         testSingleBond();
         testTemperature();
         testConstraints();

platforms/opencl/tests/TestOpenCLCMAPTorsionForce.cpp

@@ -48,6 +48,8 @@
 using namespace OpenMM;
 using namespace std;
 
+OpenCLPlatform platform;
+
 const double TOL = 1e-5;
 
 void testCMAPTorsions() {
@@ -56,7 +58,6 @@ void testCMAPTorsions() {
     // Create two systems: one with a pair of periodic torsions, and one with a CMAP torsion
     // that approximates the same force.
 
-    OpenCLPlatform platform;
     System system1;
     for (int i = 0; i < 5; i++)
         system1.addParticle(1.0);
@@ -104,8 +105,10 @@ void testCMAPTorsions() {
     }
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("OpenCLPrecision", string(argv[1]));
         testCMAPTorsions();
     }
     catch(const exception& e) {

platforms/opencl/tests/TestOpenCLCMMotionRemover.cpp

@@ -50,6 +50,8 @@
 using namespace OpenMM;
 using namespace std;
 
+OpenCLPlatform platform;
+
 Vec3 calcCM(const vector<Vec3>& values, System& system) {
     Vec3 cm;
     for (int j = 0; j < system.getNumParticles(); ++j) {
@@ -62,7 +64,6 @@ Vec3 calcCM(const vector<Vec3>& values, System& system) {
 
 void testMotionRemoval(Integrator& integrator) {
     const int numParticles = 8;
-    OpenCLPlatform platform;
     System system;
     HarmonicBondForce* bonds = new HarmonicBondForce();
     bonds->addBond(2, 3, 2.0, 0.5);
@@ -103,8 +104,10 @@ void testMotionRemoval(Integrator& integrator) {
     }
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("OpenCLPrecision", string(argv[1]));
         LangevinIntegrator langevin(0.0, 1e-5, 0.01);
         testMotionRemoval(langevin);
         VerletIntegrator verlet(0.01);

platforms/opencl/tests/TestOpenCLCheckpoints.cpp

@@ -48,6 +48,8 @@
 using namespace OpenMM;
 using namespace std;
 
+OpenCLPlatform platform;
+
 const double TOL = 1e-5;
 
 void compareStates(State& s1, State& s2) {
@@ -71,7 +73,6 @@ void testCheckpoint() {
     const int numParticles = 100;
     const double boxSize = 5.0;
     const double temperature = 200.0;
-    OpenCLPlatform platform;
     System system;
     system.addForce(new AndersenThermostat(0.0, 100.0));
     NonbondedForce* nonbonded = new NonbondedForce();
@@ -158,8 +159,10 @@ void testCheckpoint() {
     compareStates(s6, s8);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("OpenCLPrecision", string(argv[1]));
         testCheckpoint();
     }
     catch(const exception& e) {

platforms/opencl/tests/TestOpenCLCustomAngleForce.cpp

@@ -49,9 +49,9 @@ using namespace std;
 
 const double TOL = 1e-5;
 
-void testAngles() {
-    OpenCLPlatform platform;
+OpenCLPlatform platform;
 
+void testAngles() {
     // Create a system using a CustomAngleForce.
 
     System customSystem;
@@ -134,7 +134,6 @@ void testAngles() {
 }
 
 void testParallelComputation() {
-    OpenCLPlatform platform;
     System system;
     const int numParticles = 200;
     for (int i = 0; i < numParticles; i++)
@@ -163,8 +162,10 @@ void testParallelComputation() {
         ASSERT_EQUAL_VEC(state1.getForces()[i], state2.getForces()[i], 1e-5);
 }
 
-int main() {
+int main(int argc, char* argv[]) {
     try {
+        if (argc > 1)
+            platform.setPropertyDefaultValue("OpenCLPrecision", string(argv[1]));
         testAngles();
         testParallelComputation();
     }