Beispiel #1
0
    def init_all(self):
        n_slices = 100
        z_cut = 2.5e-9 * c

        self.n_slices = n_slices
        self.z_cut = z_cut

        from LHC import LHC
        self.machine = LHC(machine_configuration='Injection',
                           n_segments=43,
                           D_x=0.,
                           RF_at='end_of_transverse')

        # We suppose that all the object that cannot be slice parallelized are at the end of the ring
        i_end_parallel = len(
            self.machine.one_turn_map) - 1  #only RF is not parallelizable

        # split the machine
        sharing = shs.ShareSegments(i_end_parallel, self.ring_of_CPUs.N_nodes)
        myid = self.ring_of_CPUs.myid
        i_start_part, i_end_part = sharing.my_part(myid)
        self.mypart = self.machine.one_turn_map[i_start_part:i_end_part]
        if self.ring_of_CPUs.I_am_a_worker:
            print 'I am id=%d (worker) and my part is %d long' % (
                myid, len(self.mypart))
        elif self.ring_of_CPUs.I_am_the_master:
            self.non_parallel_part = self.machine.one_turn_map[i_end_parallel:]
            print 'I am id=%d (master) and my part is %d long' % (
                myid, len(self.mypart))
	def init_all(self):

		
		self.n_slices = n_slices
		self.n_segments = n_segments

		# define the machine
		from LHC_custom import LHC
		self.machine = LHC(n_segments = n_segments, machine_configuration = machine_configuration)
		
		# define MP size
		nel_mp_ref_0 = init_unif_edens*4*x_aper*y_aper/N_MP_ele_init
		
		# prepare e-cloud
		import PyECLOUD.PyEC4PyHT as PyEC4PyHT
		ecloud = PyEC4PyHT.Ecloud(slice_by_slice_mode=True,
						L_ecloud=self.machine.circumference/n_segments, slicer=None , 
						Dt_ref=Dt_ref, pyecl_input_folder=pyecl_input_folder,
						chamb_type = chamb_type,
						x_aper=x_aper, y_aper=y_aper,
						filename_chm=filename_chm, Dh_sc=Dh_sc,
						init_unif_edens_flag=init_unif_edens_flag,
						init_unif_edens=init_unif_edens, 
						N_mp_max=N_mp_max,
						nel_mp_ref_0=nel_mp_ref_0,
						B_multip=B_multip_per_eV*self.machine.p0/e*c)

		# setup transverse losses (to "protect" the ecloud)
		import PyHEADTAIL.aperture.aperture as aperture
		apt_xy = aperture.EllipticalApertureXY(x_aper=ecloud.impact_man.chamb.x_aper, y_aper=ecloud.impact_man.chamb.y_aper)
		self.machine.one_turn_map.append(apt_xy)
		
		n_non_parallelizable = 2 #rf and aperture
		
		# We suppose that all the object that cannot be slice parallelized are at the end of the ring
		i_end_parallel = len(self.machine.one_turn_map)-n_non_parallelizable

		# split the machine
		sharing = shs.ShareSegments(i_end_parallel, self.ring_of_CPUs.N_nodes)
		myid = self.ring_of_CPUs.myid
		i_start_part, i_end_part = sharing.my_part(myid)
		self.mypart = self.machine.one_turn_map[i_start_part:i_end_part]
		if self.ring_of_CPUs.I_am_a_worker:
			print 'I am id=%d/%d (worker) and my part is %d long'%(myid, self.ring_of_CPUs.N_nodes, len(self.mypart))
		elif self.ring_of_CPUs.I_am_the_master:
			self.non_parallel_part = self.machine.one_turn_map[i_end_parallel:]
			print 'I am id=%d/%d (master) and my part is %d long'%(myid, self.ring_of_CPUs.N_nodes, len(self.mypart))
		
		#install eclouds in my part
		my_new_part = []
		self.my_list_eclouds = []
		for ele in self.mypart:
			my_new_part.append(ele)
			if ele in self.machine.transverse_map:
				#ecloud_new = ecloud.generate_twin_ecloud_with_shared_space_charge()
				ecloud_new = DummyEcloud()
				my_new_part.append(ecloud_new)
				self.my_list_eclouds.append(ecloud_new)
		self.mypart = my_new_part
Beispiel #3
0
    def init_all(self):
        n_slices = 100
        z_cut = 2.5e-9 * c

        self.n_slices = n_slices
        self.z_cut = z_cut

        n_segments = 70

        from LHC import LHC
        self.machine = LHC(machine_configuration='Injection',
                           n_segments=n_segments,
                           D_x=0.,
                           RF_at='end_of_transverse')

        # We suppose that all the object that cannot be slice parallelized are at the end of the ring
        i_end_parallel = len(
            self.machine.one_turn_map) - 1  #only RF is not parallelizable

        # split the machine
        sharing = shs.ShareSegments(i_end_parallel, self.ring_of_CPUs.N_nodes)
        myid = self.ring_of_CPUs.myid
        i_start_part, i_end_part = sharing.my_part(myid)
        self.mypart = self.machine.one_turn_map[i_start_part:i_end_part]
        if self.ring_of_CPUs.I_am_a_worker:
            print 'I am id=%d (worker) and my part is %d long' % (
                myid, len(self.mypart))
        elif self.ring_of_CPUs.I_am_the_master:
            self.non_parallel_part = self.machine.one_turn_map[i_end_parallel:]
            print 'I am id=%d (master) and my part is %d long' % (
                myid, len(self.mypart))

        # config e-cloud
        chamb_type = 'polyg'
        x_aper = 2.300000e-02
        y_aper = 1.800000e-02
        filename_chm = '../pyecloud_config/LHC_chm_ver.mat'
        B_multip_per_eV = [1.190000e-12]
        B_multip_per_eV = np.array(B_multip_per_eV)
        fraction_device = 0.65
        intensity = 1.150000e+11
        epsn_x = 2.5e-6
        epsn_y = 2.5e-6
        init_unif_edens_flag = 1
        init_unif_edens = 9.000000e+11
        N_MP_ele_init = 100000
        N_mp_max = N_MP_ele_init * 4.
        Dh_sc = .2e-3
        nel_mp_ref_0 = init_unif_edens * 4 * x_aper * y_aper / N_MP_ele_init

        import PyECLOUD.PyEC4PyHT as PyEC4PyHT
        ecloud = PyEC4PyHT.Ecloud(
            L_ecloud=self.machine.circumference / n_segments,
            slicer=None,
            Dt_ref=10e-12,
            pyecl_input_folder='../pyecloud_config',
            chamb_type=chamb_type,
            x_aper=x_aper,
            y_aper=y_aper,
            filename_chm=filename_chm,
            Dh_sc=Dh_sc,
            init_unif_edens_flag=init_unif_edens_flag,
            init_unif_edens=init_unif_edens,
            N_mp_max=N_mp_max,
            nel_mp_ref_0=nel_mp_ref_0,
            B_multip=B_multip_per_eV * self.machine.p0 / e * c,
            slice_by_slice_mode=True)

        my_new_part = []
        self.my_list_eclouds = []
        for ele in self.mypart:
            my_new_part.append(ele)
            if ele in self.machine.transverse_map:
                ecloud_new = ecloud.generate_twin_ecloud_with_shared_space_charge(
                )
                my_new_part.append(ecloud_new)
                self.my_list_eclouds.append(ecloud_new)
        self.mypart = my_new_part
	def init_all(self):

		
		self.n_slices = n_slices
		self.n_segments = n_segments

		from machines_for_testing import SPS
		self.machine = SPS(n_segments = n_segments, 
			machine_configuration = 'Q20-injection', accQ_x=20., accQ_y=20., 
					RF_at='end_of_transverse')

		
		# We suppose that all the object that cannot be slice parallelized are at the end of the ring
		i_end_parallel = len(self.machine.one_turn_map)-1 #only RF is not parallelizable

		# split the machine
		sharing = shs.ShareSegments(i_end_parallel, self.ring_of_CPUs.N_nodes)
		myid = self.ring_of_CPUs.myid
		i_start_part, i_end_part = sharing.my_part(myid)
		self.mypart = self.machine.one_turn_map[i_start_part:i_end_part]
		if self.ring_of_CPUs.I_am_a_worker:
			print 'I am id=%d (worker) and my part is %d long'%(myid, len(self.mypart))
		elif self.ring_of_CPUs.I_am_the_master:
			self.non_parallel_part = self.machine.one_turn_map[i_end_parallel:]
			print 'I am id=%d (master) and my part is %d long'%(myid, len(self.mypart))

	
		# config e-cloud
		init_unif_edens_flag=1
		init_unif_edens=2e11
		N_MP_ele_init = 100000
		N_mp_max = N_MP_ele_init*4.
		
		# define apertures and Dh_sc to simulate headtail 
		inj_optics = self.machine.transverse_map.get_injection_optics()
		sigma_x = np.sqrt(inj_optics['beta_x']*epsn_x/self.machine.betagamma)
		sigma_y = np.sqrt(inj_optics['beta_y']*epsn_y/self.machine.betagamma)
		x_aper  = 20*sigma_x
		y_aper  = 20*sigma_y
		Dh_sc = 2*x_aper/128/2
		
		# initial MP size
		nel_mp_ref_0 = init_unif_edens*4*x_aper*y_aper/N_MP_ele_init

		import PyECLOUD.PyEC4PyHT as PyEC4PyHT
		ecloud = PyEC4PyHT.Ecloud(slice_by_slice_mode=True,
						L_ecloud=self.machine.circumference/n_segments, 
						slicer=None, 
						Dt_ref=25e-12, 
						pyecl_input_folder='../../PyECLOUD/testing/tests_PyEC4PyHT/drift_sim/',
						x_aper=x_aper, y_aper=y_aper, Dh_sc=Dh_sc,
						init_unif_edens_flag=init_unif_edens_flag,
						init_unif_edens=init_unif_edens, 
						N_MP_ele_init=N_MP_ele_init,
						N_mp_max=N_mp_max,
						nel_mp_ref_0=nel_mp_ref_0,
						B_multip=B_multip)
		
		
		my_new_part = []
		self.my_list_eclouds = []
		for ele in self.mypart:
			my_new_part.append(ele)
			if ele in self.machine.transverse_map:
				ecloud_new = ecloud.generate_twin_ecloud_with_shared_space_charge()
				my_new_part.append(ecloud_new)
				self.my_list_eclouds.append(ecloud_new)
		self.mypart = my_new_part