Example #1
0
    def test2(self):
        instance = BHTreeInterface()
        instance.initialize_code()

        instance.commit_parameters()
        for i in [1, 2, 3]:
            temp_particle = instance.new_particle(mass = i, radius = 1.0, x = 0.0, y = 0.0, z = 0.0, vx = 0.0, vy = 0.0, vz = 0.0)
            self.assertEquals(i, temp_particle['index_of_the_particle'])
        
        instance.commit_particles()
        self.assertEquals(1, instance.get_index_of_first_particle()['index_of_the_particle'])
        self.assertEquals(2, instance.get_index_of_next_particle(1)['index_of_the_next_particle']) 
        self.assertEquals(3, instance.get_index_of_next_particle(2)['index_of_the_next_particle'])
            
        instance.delete_particle(1)
      
        self.assertEquals(2, instance.get_number_of_particles()['number_of_particles'])
        
        #the deletion does a swap, so 3 is copied to 1, (overwriting old 1 and treesize -> treesize-1
        self.assertEquals(3, instance.get_index_of_first_particle()['index_of_the_particle'])
        
        self.assertEquals(1, instance.get_index_of_next_particle(2)['__result'])

        instance.cleanup_code()
        instance.stop()
Example #2
0
    def test5(self):
        interface = BHTreeInterface()
        interface.initialize_code()
        
        interface.commit_parameters()
        interface.new_particle([10,20],[0,0],[0,0], [0,0], [0,0], [0,0], [0,0],[1,1])
        interface.commit_particles()
        retrieved_state = interface.get_state(1)
        
        self.assertEquals(10.0,  retrieved_state['mass'])
        self.assertEquals(1, retrieved_state['radius'])

        retrieved_state = interface.get_state([1,2])
        self.assertEquals(20.0,  retrieved_state['mass'][1])
        self.assertEquals(interface.get_number_of_particles()['number_of_particles'], 2)
        interface.cleanup_code()
        interface.stop()
Example #3
0
 def test0(self):
     instance = BHTreeInterface()
     self.assertTrue("Barnes" in instance.all_literature_references_string())
     instance.stop()
Example #4
0
    def test1(self):
        instance = BHTreeInterface()
        instance.initialize_code()
        instance.commit_parameters()
        res1 = instance.new_particle(mass = 11.0, radius = 2.0, x = 0.0, y = 0.0, z = 0.0, vx = 0.0, vy = 0.0, vz = 0.0)
        res2 = instance.new_particle(mass = 21.0, radius = 5.0, x = 10.0, y = 0.0, z = 0.0, vx = 10.0, vy = 0.0, vz = 0.0)
        
        instance.commit_particles()
        self.assertEquals(1, res1['index_of_the_particle'])
        self.assertEquals(2, res2['index_of_the_particle'])

        retrieved_state1 = instance.get_state(1)
        retrieved_state2 = instance.get_state(2)

        self.assertEquals(11.0,  retrieved_state1['mass'])
        self.assertEquals(21.0,  retrieved_state2['mass'])
        self.assertEquals(0.0,  retrieved_state1['x'])
        self.assertEquals(10.0,  retrieved_state2['x'])

        self.assertEquals(1, instance.get_index_of_first_particle()['index_of_the_particle'])
        self.assertEquals(2, instance.get_index_of_next_particle(1)['index_of_the_next_particle']) 
        
        instance.cleanup_code()
        instance.stop()
Example #5
0
 def test6(self):
     instance = BHTreeInterface()
     instance.initialize_code()
     instance.commit_parameters()
     
     ids = []
     for i in [1, 2, 3]:
         id, error = instance.new_particle(mass = i, radius = 1.0, x = 0.0, y = 0.0, z = 0.0, vx = 0.0, vy = 0.0, vz = 0.0)
         ids.append(id)
     
     
     print ids
     
     instance.commit_particles()
     
         
     instance.delete_particle(ids[0])
     id, error = instance.new_particle(mass = 4, radius = 1.0, x = 0.0, y = 0.0, z = 0.0, vx = 0.0, vy = 0.0, vz = 0.0)
     self.failIfEqual(id, ids[-1])
     
     instance.cleanup_code()
     instance.stop()
Example #6
0
 def test8(self):
     instance = BHTreeInterface()
     instance.initialize_code()
     instance.set_epsilon_squared(0.1 * 0.1)
     instance.commit_parameters()
     id1,errorcode = instance.new_particle(mass = 10.0, radius = 1.0, x = 0.0, y = 0.0, z = 0.0, vx = 0.0, vy = 0.0, vz = 0.0)
     id2,errorcode = instance.new_particle(mass = 10.0, radius = 1.0, x = 2.0, y = 0.0, z = 0.0, vx = 10.0, vy = 0.0, vz = 0.0)
     
     instance.commit_particles()
     potential, errorcode = instance.get_potential(id1)
     self.assertEquals(errorcode, 0)
     self.assertAlmostRelativeEquals(potential,  -10.0 / numpy.sqrt(2.0**2 + 0.1**2), 8)
     instance.cleanup_code()
     instance.stop()
Example #7
0
    def test1(self):
        instance = BHTreeInterface()
        instance.initialize_code()
        instance.commit_parameters()
        res1 = instance.new_particle(mass=11.0,
                                     radius=2.0,
                                     x=0.0,
                                     y=0.0,
                                     z=0.0,
                                     vx=0.0,
                                     vy=0.0,
                                     vz=0.0)
        res2 = instance.new_particle(mass=21.0,
                                     radius=5.0,
                                     x=10.0,
                                     y=0.0,
                                     z=0.0,
                                     vx=10.0,
                                     vy=0.0,
                                     vz=0.0)

        instance.commit_particles()
        self.assertEquals(1, res1['index_of_the_particle'])
        self.assertEquals(2, res2['index_of_the_particle'])

        retrieved_state1 = instance.get_state(1)
        retrieved_state2 = instance.get_state(2)

        self.assertEquals(11.0, retrieved_state1['mass'])
        self.assertEquals(21.0, retrieved_state2['mass'])
        self.assertEquals(0.0, retrieved_state1['x'])
        self.assertEquals(10.0, retrieved_state2['x'])

        self.assertEquals(
            1,
            instance.get_index_of_first_particle()['index_of_the_particle'])
        self.assertEquals(
            2,
            instance.get_index_of_next_particle(1)
            ['index_of_the_next_particle'])

        instance.cleanup_code()
        instance.stop()
Example #8
0
    def test2(self):
        instance = BHTreeInterface()
        instance.initialize_code()

        instance.commit_parameters()
        for i in [1, 2, 3]:
            temp_particle = instance.new_particle(mass=i,
                                                  radius=1.0,
                                                  x=0.0,
                                                  y=0.0,
                                                  z=0.0,
                                                  vx=0.0,
                                                  vy=0.0,
                                                  vz=0.0)
            self.assertEquals(i, temp_particle['index_of_the_particle'])

        instance.commit_particles()
        self.assertEquals(
            1,
            instance.get_index_of_first_particle()['index_of_the_particle'])
        self.assertEquals(
            2,
            instance.get_index_of_next_particle(1)
            ['index_of_the_next_particle'])
        self.assertEquals(
            3,
            instance.get_index_of_next_particle(2)
            ['index_of_the_next_particle'])

        instance.delete_particle(1)

        self.assertEquals(
            2,
            instance.get_number_of_particles()['number_of_particles'])

        #the deletion does a swap, so 3 is copied to 1, (overwriting old 1 and treesize -> treesize-1
        self.assertEquals(
            3,
            instance.get_index_of_first_particle()['index_of_the_particle'])

        self.assertEquals(1,
                          instance.get_index_of_next_particle(2)['__result'])

        instance.cleanup_code()
        instance.stop()
Example #9
0
 def test0(self):
     instance = BHTreeInterface()
     self.assertTrue(
         "Barnes" in instance.all_literature_references_string())
     instance.stop()
Example #10
0
    def test8(self):
        instance = BHTreeInterface()
        instance.initialize_code()
        instance.set_epsilon_squared(0.1 * 0.1)
        instance.commit_parameters()
        id1, errorcode = instance.new_particle(mass=10.0,
                                               radius=1.0,
                                               x=0.0,
                                               y=0.0,
                                               z=0.0,
                                               vx=0.0,
                                               vy=0.0,
                                               vz=0.0)
        id2, errorcode = instance.new_particle(mass=10.0,
                                               radius=1.0,
                                               x=2.0,
                                               y=0.0,
                                               z=0.0,
                                               vx=10.0,
                                               vy=0.0,
                                               vz=0.0)

        instance.commit_particles()
        potential, errorcode = instance.get_potential(id1)
        self.assertEquals(errorcode, 0)
        self.assertAlmostRelativeEquals(potential,
                                        -10.0 / numpy.sqrt(2.0**2 + 0.1**2), 8)
        instance.cleanup_code()
        instance.stop()
Example #11
0
    def test7(self):
        interface = BHTreeInterface(
        )  #channel_type="remote") #, debugger="xterm")
        interface.initialize_code()

        interface.commit_parameters()
        interface.new_particle([10, 20], [0, 0], [0, 0], [0, 0], [0, 0],
                               [0, 0], [0, 0], [1, 1])
        interface.commit_particles()
        retrieved_state = interface.get_state(1)

        self.assertEquals(10.0, retrieved_state['mass'])
        self.assertEquals(1, retrieved_state['radius'])

        retrieved_state = interface.get_state([1, 2])
        self.assertEquals(20.0, retrieved_state['mass'][1])
        self.assertEquals(
            interface.get_number_of_particles()['number_of_particles'], 2)
        interface.cleanup_code()
        interface.stop()
Example #12
0
    def test6(self):
        instance = BHTreeInterface()
        instance.initialize_code()
        instance.commit_parameters()

        ids = []
        for i in [1, 2, 3]:
            id, error = instance.new_particle(mass=i,
                                              radius=1.0,
                                              x=0.0,
                                              y=0.0,
                                              z=0.0,
                                              vx=0.0,
                                              vy=0.0,
                                              vz=0.0)
            ids.append(id)

        print ids

        instance.commit_particles()

        instance.delete_particle(ids[0])
        id, error = instance.new_particle(mass=4,
                                          radius=1.0,
                                          x=0.0,
                                          y=0.0,
                                          z=0.0,
                                          vx=0.0,
                                          vy=0.0,
                                          vz=0.0)
        self.failIfEqual(id, ids[-1])

        instance.cleanup_code()
        instance.stop()
Example #13
0
    def test5(self):
        interface = BHTreeInterface()
        interface.initialize_code()

        interface.commit_parameters()
        interface.new_particle([10, 20], [0, 0], [0, 0], [0, 0], [0, 0],
                               [0, 0], [0, 0], [1, 1])
        interface.commit_particles()
        retrieved_state = interface.get_state(1)

        self.assertEqual(10.0, retrieved_state['mass'])
        self.assertEqual(1, retrieved_state['radius'])

        retrieved_state = interface.get_state([1, 2])
        self.assertEqual(20.0, retrieved_state['mass'][1])
        self.assertEqual(
            interface.get_number_of_particles()['number_of_particles'], 2)
        interface.cleanup_code()
        interface.stop()