Changed name of config import.

gprMax/gprMax.py

@@ -30,7 +30,7 @@ import numpy as np
 
 from gprMax._version import __version__
 from gprMax._version import codename
-import gprMax.config
+import gprMax.config as config
 from gprMax.config import c
 from gprMax.config import e0
 from gprMax.config import m0
@@ -126,8 +126,8 @@ def run_main(args):
         # Flatten a list of lists
         if any(isinstance(element, list) for element in args.gpu):
             args.gpu = [val for sublist in args.gpu for val in sublist]
-        gpus1, allgpustext = detect_check_gpus(args.gpu)
-        print('with GPU(s): {}'.format(' | '.join(allgpustext)))
+        config.gpus, allgpustext = detect_check_gpus(args.gpu)
+        print('GPU(s): {}'.format(' | '.join(allgpustext)))
 
     # Process input file
     with open_path_file(args.inputfile) as inputfile:
@@ -167,8 +167,8 @@ def run_main(args):
             else:
                 if args.task and args.restart:
                     raise GeneralError('Job array and restart modes cannot be used together')
-                if gprMax.config.gpus:
-                    gprMax.config.gpus = gprMax.config.gpus[0]
+                if config.gpus:
+                    config.gpus = config.gpus[0]
                 run_std_sim(args, inputfile, usernamespace)
 
 

gprMax/grid.py

@@ -25,12 +25,11 @@ init()
 import numpy as np
 np.seterr(invalid='raise')
 
-import gprMax.config
+import gprMax.config as config
 from gprMax.config import c
 from gprMax.config import floattype
 from gprMax.config import complextype
 from gprMax.config import numdispersion
-from gprMax.config import gpus as gpu
 from gprMax.config import hostinfo
 from gprMax.exceptions import GeneralError
 from gprMax.materials import Material
@@ -211,17 +210,17 @@ class FDTDGrid(Grid):
             raise GeneralError('Memory (RAM) required ~{} exceeds {} detected!\n'.format(human_size(self.memoryusage), human_size(hostinfo['ram'], a_kilobyte_is_1024_bytes=True)))
 
         # Check if model can be run on specified GPU if required
-        if gpu is not None:
-            if self.memoryusage - snapsmemsize > gpu.totalmem:
-                raise GeneralError('Memory (RAM) required ~{} exceeds {} detected on specified {} - {} GPU!\n'.format(human_size(self.memoryusage), human_size(gpu.totalmem, a_kilobyte_is_1024_bytes=True), gpu.deviceID, gpu.name))
+        if config.gpus is not None:
+            if self.memoryusage - snapsmemsize > config.gpus.totalmem:
+                raise GeneralError('Memory (RAM) required ~{} exceeds {} detected on specified {} - {} GPU!\n'.format(human_size(self.memoryusage), human_size(config.gpus.totalmem, a_kilobyte_is_1024_bytes=True), config.gpus.deviceID, config.gpus.name))
 
             # If the required memory without the snapshots will fit on the GPU then transfer and store snaphots on host
-            if snapsmemsize != 0 and self.memoryusage - snapsmemsize < gpu.totalmem:
-                gprMax.config.snapsgpu2cpu = True
+            if snapsmemsize != 0 and self.memoryusage - snapsmemsize < config.gpus.totalmem:
+                config.snapsgpu2cpu = True
 
     def gpu_set_blocks_per_grid(self):
         """Set the blocks per grid size used for updating the electric and magnetic field arrays on a GPU."""
-        gprMax.config.gpus.bpg = (int(np.ceil(((self.nx + 1) * (self.ny + 1) * (self.nz + 1)) / gpu.tpb[0])), 1, 1)
+        config.gpus.bpg = (int(np.ceil(((self.nx + 1) * (self.ny + 1) * (self.nz + 1)) / config.gpus.tpb[0])), 1, 1)
 
     def gpu_initialise_arrays(self):
         """Initialise standard field arrays on GPU."""
@@ -340,9 +339,9 @@ def dispersion_analysis(G):
         minwavelength = minvelocity / results['maxfreq']
 
         # Maximum spatial step
-        if '3D' in gprMax.config.mode:
+        if '3D' in config.mode:
             delta = max(G.dx, G.dy, G.dz)
-        elif '2D' in gprMax.config.mode:
+        elif '2D' in config.mode:
             if G.nx == 1:
                 delta = max(G.dy, G.dz)
             elif G.ny == 1:

gprMax/input_cmds_multiuse.py

@@ -23,7 +23,7 @@ init()
 import numpy as np
 from tqdm import tqdm
 
-import gprMax.config
+import gprMax.config as config
 from gprMax.config import z0
 from gprMax.config import floattype
 from gprMax.config import gpus
@@ -101,11 +101,11 @@ def process_multicmds(multicmds, G):
             polarisation = tmp[0].lower()
             if polarisation not in ('x', 'y', 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be x, y, or z')
-            if '2D TMx' in gprMax.config.mode and (polarisation == 'y' or polarisation == 'z'):
+            if '2D TMx' in config.mode and (polarisation == 'y' or polarisation == 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be x in 2D TMx mode')
-            elif '2D TMy' in gprMax.config.mode and (polarisation == 'x' or polarisation == 'z'):
+            elif '2D TMy' in config.mode and (polarisation == 'x' or polarisation == 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be y in 2D TMy mode')
-            elif '2D TMz' in gprMax.config.mode and (polarisation == 'x' or polarisation == 'y'):
+            elif '2D TMz' in config.mode and (polarisation == 'x' or polarisation == 'y'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be z in 2D TMz mode')
 
             xcoord = G.calculate_coord('x', tmp[1])
@@ -172,11 +172,11 @@ def process_multicmds(multicmds, G):
             polarisation = tmp[0].lower()
             if polarisation not in ('x', 'y', 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be x, y, or z')
-            if '2D TMx' in gprMax.config.mode and (polarisation == 'y' or polarisation == 'z'):
+            if '2D TMx' in config.mode and (polarisation == 'y' or polarisation == 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be x in 2D TMx mode')
-            elif '2D TMy' in gprMax.config.mode and (polarisation == 'x' or polarisation == 'z'):
+            elif '2D TMy' in config.mode and (polarisation == 'x' or polarisation == 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be y in 2D TMy mode')
-            elif '2D TMz' in gprMax.config.mode and (polarisation == 'x' or polarisation == 'y'):
+            elif '2D TMz' in config.mode and (polarisation == 'x' or polarisation == 'y'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be z in 2D TMz mode')
 
             xcoord = G.calculate_coord('x', tmp[1])
@@ -234,7 +234,7 @@ def process_multicmds(multicmds, G):
             h.calculate_waveform_values(G)
 
             if messages:
-                if '2D' in gprMax.config.mode:
+                if '2D' in config.mode:
                     print('Hertzian dipole is a line source in 2D with polarity {} at {:g}m, {:g}m, {:g}m,'.format(h.polarisation, h.xcoord * G.dx, h.ycoord * G.dy, h.zcoord * G.dz) + startstop + 'using waveform {} created.'.format(h.waveformID))
                 else:
                     print('Hertzian dipole with polarity {} at {:g}m, {:g}m, {:g}m,'.format(h.polarisation, h.xcoord * G.dx, h.ycoord * G.dy, h.zcoord * G.dz) + startstop + 'using waveform {} created.'.format(h.waveformID))
@@ -253,11 +253,11 @@ def process_multicmds(multicmds, G):
             polarisation = tmp[0].lower()
             if polarisation not in ('x', 'y', 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be x, y, or z')
-            if '2D TMx' in gprMax.config.mode and (polarisation == 'y' or polarisation == 'z'):
+            if '2D TMx' in config.mode and (polarisation == 'y' or polarisation == 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be x in 2D TMx mode')
-            elif '2D TMy' in gprMax.config.mode and (polarisation == 'x' or polarisation == 'z'):
+            elif '2D TMy' in config.mode and (polarisation == 'x' or polarisation == 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be y in 2D TMy mode')
-            elif '2D TMz' in gprMax.config.mode and (polarisation == 'x' or polarisation == 'y'):
+            elif '2D TMz' in config.mode and (polarisation == 'x' or polarisation == 'y'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be z in 2D TMz mode')
 
             xcoord = G.calculate_coord('x', tmp[1])
@@ -326,11 +326,11 @@ def process_multicmds(multicmds, G):
             polarisation = tmp[0].lower()
             if polarisation not in ('x', 'y', 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be x, y, or z')
-            if '2D TMx' in gprMax.config.mode and (polarisation == 'y' or polarisation == 'z'):
+            if '2D TMx' in config.mode and (polarisation == 'y' or polarisation == 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be x in 2D TMx mode')
-            elif '2D TMy' in gprMax.config.mode and (polarisation == 'x' or polarisation == 'z'):
+            elif '2D TMy' in config.mode and (polarisation == 'x' or polarisation == 'z'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be y in 2D TMy mode')
-            elif '2D TMz' in gprMax.config.mode and (polarisation == 'x' or polarisation == 'y'):
+            elif '2D TMz' in config.mode and (polarisation == 'x' or polarisation == 'y'):
                 raise CmdInputError("'" + cmdname + ': ' + ' '.join(tmp) + "'" + ' polarisation must be z in 2D TMz mode')
 
             xcoord = G.calculate_coord('x', tmp[1])

gprMax/input_cmds_singleuse.py

@@ -28,7 +28,7 @@ init()
 import numpy as np
 from scipy import interpolate
 
-import gprMax.config
+import gprMax.config as config
 from gprMax.config import c
 from gprMax.config import floattype
 from gprMax.config import gpus as gpu
@@ -57,9 +57,9 @@ def process_singlecmds(singlecmds, G):
         if len(tmp) != 1:
             raise CmdInputError(cmd + ' requires exactly one parameter')
         if singlecmds[cmd].lower() == 'y':
-            gprMax.config.messages = True
+            config.messages = True
         elif singlecmds[cmd].lower() == 'n':
-            gprMax.config.messages = False
+            config.messages = False
         else:
             raise CmdInputError(cmd + ' requires input values of either y or n')
 
@@ -84,34 +84,34 @@ def process_singlecmds(singlecmds, G):
             raise CmdInputError(cmd + ' requires exactly one parameter to specify the number of threads to use')
         if tmp[0] < 1:
             raise CmdInputError(cmd + ' requires the value to be an integer not less than one')
-        gprMax.config.hostinfo['ompthreads'] = tmp[0]
-        os.environ['OMP_NUM_THREADS'] = str(gprMax.config.hostinfo['ompthreads'])
+        config.hostinfo['ompthreads'] = tmp[0]
+        os.environ['OMP_NUM_THREADS'] = str(config.hostinfo['ompthreads'])
     elif os.environ.get('OMP_NUM_THREADS'):
-        gprMax.config.hostinfo['ompthreads'] = int(os.environ.get('OMP_NUM_THREADS'))
+        config.hostinfo['ompthreads'] = int(os.environ.get('OMP_NUM_THREADS'))
     else:
         # Set number of threads to number of physical CPU cores
-        gprMax.config.hostinfo['ompthreads'] = hostinfo['physicalcores']
-        os.environ['OMP_NUM_THREADS'] = str(gprMax.config.hostinfo['ompthreads'])
+        config.hostinfo['ompthreads'] = hostinfo['physicalcores']
+        os.environ['OMP_NUM_THREADS'] = str(config.hostinfo['ompthreads'])
 
-    if gprMax.config.messages:
-        print('CPU (OpenMP) threads: {}'.format(gprMax.config.hostinfo['ompthreads']))
-    if gprMax.config.hostinfo['ompthreads'] > hostinfo['physicalcores']:
-        print(Fore.RED + 'WARNING: You have specified more threads ({}) than available physical CPU cores ({}). This may lead to degraded performance.'.format(gprMax.config.hostinfo['ompthreads'], hostinfo['physicalcores']) + Style.RESET_ALL)
+    if config.messages:
+        print('CPU (OpenMP) threads: {}'.format(config.hostinfo['ompthreads']))
+    if config.hostinfo['ompthreads'] > hostinfo['physicalcores']:
+        print(Fore.RED + 'WARNING: You have specified more threads ({}) than available physical CPU cores ({}). This may lead to degraded performance.'.format(config.hostinfo['ompthreads'], hostinfo['physicalcores']) + Style.RESET_ALL)
 
     # Print information about any GPU in use
-    if gprMax.config.messages:
+    if config.messages:
         if gpu is not None:
             print('GPU: {} - {}'.format(gpu.deviceID, gpu.name))
 
     # Print information about precision of main field values
-    if gprMax.config.messages:
+    if config.messages:
         print('Output data type: {}\n'.format(np.dtype(floattype).name))
 
     # Title
     cmd = '#title'
     if singlecmds[cmd] is not None:
         G.title = singlecmds[cmd]
-        if gprMax.config.messages:
+        if config.messages:
             print('Model title: {}'.format(G.title))
 
     # Spatial discretisation
@@ -128,7 +128,7 @@ def process_singlecmds(singlecmds, G):
     G.dx = tmp[0]
     G.dy = tmp[1]
     G.dz = tmp[2]
-    if gprMax.config.messages:
+    if config.messages:
         print('Spatial discretisation: {:g} x {:g} x {:g}m'.format(G.dx, G.dy, G.dz))
 
     # Domain
@@ -141,35 +141,35 @@ def process_singlecmds(singlecmds, G):
     G.nz = round_value(tmp[2] / G.dz)
     if G.nx == 0 or G.ny == 0 or G.nz == 0:
         raise CmdInputError(cmd + ' requires at least one cell in every dimension')
-    if gprMax.config.messages:
+    if config.messages:
         print('Domain size: {:g} x {:g} x {:g}m ({:d} x {:d} x {:d} = {:g} cells)'.format(tmp[0], tmp[1], tmp[2], G.nx, G.ny, G.nz, (G.nx * G.ny * G.nz)))
 
     # Time step CFL limit (either 2D or 3D); switch off appropriate PMLs for 2D
     if G.nx == 1:
         G.dt = 1 / (c * np.sqrt((1 / G.dy) * (1 / G.dy) + (1 / G.dz) * (1 / G.dz)))
-        gprMax.config.mode = '2D TMx'
+        config.mode = '2D TMx'
         G.pmlthickness['x0'] = 0
         G.pmlthickness['xmax'] = 0
     elif G.ny == 1:
         G.dt = 1 / (c * np.sqrt((1 / G.dx) * (1 / G.dx) + (1 / G.dz) * (1 / G.dz)))
-        gprMax.config.mode = '2D TMy'
+        config.mode = '2D TMy'
         G.pmlthickness['y0'] = 0
         G.pmlthickness['ymax'] = 0
     elif G.nz == 1:
         G.dt = 1 / (c * np.sqrt((1 / G.dx) * (1 / G.dx) + (1 / G.dy) * (1 / G.dy)))
-        gprMax.config.mode = '2D TMz'
+        config.mode = '2D TMz'
         G.pmlthickness['z0'] = 0
         G.pmlthickness['zmax'] = 0
     else:
         G.dt = 1 / (c * np.sqrt((1 / G.dx) * (1 / G.dx) + (1 / G.dy) * (1 / G.dy) + (1 / G.dz) * (1 / G.dz)))
-        gprMax.config.mode = '3D'
+        config.mode = '3D'
 
     # Round down time step to nearest float with precision one less than hardware maximum.
     # Avoids inadvertently exceeding the CFL due to binary representation of floating point number.
     G.dt = round_value(G.dt, decimalplaces=d.getcontext().prec - 1)
 
-    if gprMax.config.messages:
-        print('Mode: {}'.format(gprMax.config.mode))
+    if config.messages:
+        print('Mode: {}'.format(config.mode))
         print('Time step (at CFL limit): {:g} secs'.format(G.dt))
 
     # Time step stability factor
@@ -181,7 +181,7 @@ def process_singlecmds(singlecmds, G):
         if tmp[0] <= 0 or tmp[0] > 1:
             raise CmdInputError(cmd + ' requires the value of the time step stability factor to be between zero and one')
         G.dt = G.dt * tmp[0]
-        if gprMax.config.messages:
+        if config.messages:
             print('Time step (modified): {:g} secs'.format(G.dt))
 
     # Time window
@@ -206,7 +206,7 @@ def process_singlecmds(singlecmds, G):
             G.iterations = int(np.ceil(tmp / G.dt)) + 1
         else:
             raise CmdInputError(cmd + ' must have a value greater than zero')
-    if gprMax.config.messages:
+    if config.messages:
         print('Time window: {:g} secs ({} iterations)'.format(G.timewindow, G.iterations))
 
     # PML cells
@@ -248,7 +248,7 @@ def process_singlecmds(singlecmds, G):
         G.srcsteps[0] = round_value(float(tmp[0]) / G.dx)
         G.srcsteps[1] = round_value(float(tmp[1]) / G.dy)
         G.srcsteps[2] = round_value(float(tmp[2]) / G.dz)
-        if gprMax.config.messages:
+        if config.messages:
             print('Simple sources will step {:g}m, {:g}m, {:g}m for each model run.'.format(G.srcsteps[0] * G.dx, G.srcsteps[1] * G.dy, G.srcsteps[2] * G.dz))
 
     # rx_steps
@@ -260,7 +260,7 @@ def process_singlecmds(singlecmds, G):
         G.rxsteps[0] = round_value(float(tmp[0]) / G.dx)
         G.rxsteps[1] = round_value(float(tmp[1]) / G.dy)
         G.rxsteps[2] = round_value(float(tmp[2]) / G.dz)
-        if gprMax.config.messages:
+        if config.messages:
             print('All receivers will step {:g}m, {:g}m, {:g}m for each model run.'.format(G.rxsteps[0] * G.dx, G.rxsteps[1] * G.dy, G.rxsteps[2] * G.dz))
 
     # Excitation file for user-defined source waveforms
@@ -284,7 +284,7 @@ def process_singlecmds(singlecmds, G):
         if not os.path.isfile(excitationfile):
             excitationfile = os.path.abspath(os.path.join(G.inputdirectory, excitationfile))
 
-        if gprMax.config.messages:
+        if config.messages:
             print('\nExcitation file: {}'.format(excitationfile))
 
         # Get waveform names
@@ -326,7 +326,7 @@ def process_singlecmds(singlecmds, G):
             # Interpolate waveform values
             w.userfunc = interpolate.interp1d(waveformtime, singlewaveformvalues, **kwargs)
 
-            if gprMax.config.messages:
+            if config.messages:
                 print('User waveform {} created using {} and, if required, interpolation parameters (kind: {}, fill value: {}).'.format(w.ID, timestr, kwargs['kind'], kwargs['fill_value']))
 
             G.waveforms.append(w)

gprMax/model_build_run.py

@@ -31,13 +31,13 @@ import numpy as np
 from terminaltables import SingleTable
 from tqdm import tqdm
 
+import gprMax.config as config
 from gprMax.config import floattype
 from gprMax.config import complextype
 from gprMax.config import cudafloattype
 from gprMax.config import cudacomplextype
 from gprMax.config import numdispersion
 from gprMax.config import hostinfo
-from gprMax.config import gpus as gpu
 from gprMax.config import messages
 from gprMax.config import progressbars
 from gprMax.config import snapsgpu2cpu
@@ -167,9 +167,10 @@ def run_model(args, currentmodelrun, modelend, numbermodelruns, inputfile, usern
         G.memory_estimate_basic()
         G.memory_check()
         if messages:
-            print('\nMemory (RAM) required: ~{}\n'.format(human_size(G.memoryusage)))
-            if gpu:
-                print('\nGPU memory (RAM) required: ~{}\n'.format(human_size(G.memoryusage)))
+            memGPU = ''
+            if config.gpus:
+                memGPU = ' host + ~{} GPU'.format(human_size(G.memoryusage))
+            print('\nMemory (RAM) required: ~{}{}\n'.format(human_size(G.memoryusage), memGPU))
 
         # Initialise an array for volumetric material IDs (solid), boolean
         # arrays for specifying materials not to be averaged (rigid),
@@ -362,7 +363,7 @@ def run_model(args, currentmodelrun, modelend, numbermodelruns, inputfile, usern
             print('\nOutput file: {}\n'.format(outputfile))
 
         # Main FDTD solving functions for either CPU or GPU
-        if gpu is None:
+        if config.gpus is None:
             tsolve = solve_cpu(currentmodelrun, modelend, G)
         else:
             tsolve, memsolve = solve_gpu(currentmodelrun, modelend, G)
@@ -386,9 +387,10 @@ def run_model(args, currentmodelrun, modelend, numbermodelruns, inputfile, usern
             if messages: print()
 
         if messages:
-            print('Memory (RAM) used: ~{}'.format(human_size(p.memory_full_info().uss)))
-            if gpu:
-                print('GPU memory (RAM) used: ~{}'.format(human_size(memsolve)))
+            memGPU = ''
+            if config.gpus:
+                memGPU = ' host + ~{} GPU'.format(human_size(memsolve))
+            print('\nMemory (RAM) used: ~{}{}'.format(human_size(p.memory_full_info().uss), memGPU))
             print('Solving time [HH:MM:SS]: {}'.format(datetime.timedelta(seconds=tsolve)))
 
     # If geometry information to be reused between model runs then FDTDGrid
@@ -492,7 +494,7 @@ def solve_gpu(currentmodelrun, modelend, G):
         compiler_opts = None
 
     # Create device handle and context on specifc GPU device (and make it current context)
-    dev = drv.Device(gpu.deviceID)
+    dev = drv.Device(config.gpus.deviceID)
     ctx = dev.make_context()
 
     # Electric and magnetic field updates - prepare kernels, and get kernel functions
@@ -506,8 +508,8 @@ def solve_gpu(currentmodelrun, modelend, G):
     # Copy material coefficient arrays to constant memory of GPU (must be <64KB) for fields kernels
     updatecoeffsE = kernels_fields.get_global('updatecoeffsE')[0]
     updatecoeffsH = kernels_fields.get_global('updatecoeffsH')[0]
-    if G.updatecoeffsE.nbytes + G.updatecoeffsH.nbytes > gpu.constmem:
-        raise GeneralError('Too many materials in the model to fit onto constant memory of size {} on {} - {} GPU'.format(human_size(gpu.constmem), gpu.deviceID, gpu.name))
+    if G.updatecoeffsE.nbytes + G.updatecoeffsH.nbytes > config.gpus.constmem:
+        raise GeneralError('Too many materials in the model to fit onto constant memory of size {} on {} - {} GPU'.format(human_size(config.gpus.constmem), config.gpus.deviceID, config.gpus.name))
     else:
         drv.memcpy_htod(updatecoeffsE, G.updatecoeffsE)
         drv.memcpy_htod(updatecoeffsH, G.updatecoeffsH)
@@ -627,7 +629,7 @@ def solve_gpu(currentmodelrun, modelend, G):
         update_h_gpu(np.int32(G.nx), np.int32(G.ny), np.int32(G.nz),
                      G.ID_gpu.gpudata, G.Hx_gpu.gpudata, G.Hy_gpu.gpudata,
                      G.Hz_gpu.gpudata, G.Ex_gpu.gpudata, G.Ey_gpu.gpudata,
-                     G.Ez_gpu.gpudata, block=G.tpb, grid=G.bpg)
+                     G.Ez_gpu.gpudata, block=config.gpus.tpb, grid=config.gpus.bpg)
 
         # Update magnetic field components with the PML correction
         for pml in G.pmls:
@@ -648,7 +650,7 @@ def solve_gpu(currentmodelrun, modelend, G):
             update_e_gpu(np.int32(G.nx), np.int32(G.ny), np.int32(G.nz), G.ID_gpu.gpudata,
                          G.Ex_gpu.gpudata, G.Ey_gpu.gpudata, G.Ez_gpu.gpudata,
                          G.Hx_gpu.gpudata, G.Hy_gpu.gpudata, G.Hz_gpu.gpudata,
-                         block=G.tpb, grid=G.bpg)
+                         block=config.gpus.tpb, grid=config.gpus.bpg)
         # If there are any dispersive materials do 1st part of dispersive update
         # (it is split into two parts as it requires present and updated electric field values).
         else:
@@ -657,7 +659,7 @@ def solve_gpu(currentmodelrun, modelend, G):
                                       G.Tx_gpu.gpudata, G.Ty_gpu.gpudata, G.Tz_gpu.gpudata, G.ID_gpu.gpudata,
                                       G.Ex_gpu.gpudata, G.Ey_gpu.gpudata, G.Ez_gpu.gpudata,
                                       G.Hx_gpu.gpudata, G.Hy_gpu.gpudata, G.Hz_gpu.gpudata,
-                                      block=G.tpb, grid=G.bpg)
+                                      block=config.gpus.tpb, grid=config.gpus.bpg)
 
         # Update electric field components with the PML correction
         for pml in G.pmls:
@@ -687,7 +689,7 @@ def solve_gpu(currentmodelrun, modelend, G):
                                       np.int32(Material.maxpoles), G.updatecoeffsdispersive_gpu.gpudata,
                                       G.Tx_gpu.gpudata, G.Ty_gpu.gpudata, G.Tz_gpu.gpudata, G.ID_gpu.gpudata,
                                       G.Ex_gpu.gpudata, G.Ey_gpu.gpudata, G.Ez_gpu.gpudata,
-                                      block=G.tpb, grid=G.bpg)
+                                      block=config.gpus.tpb, grid=config.gpus.bpg)
 
     # Copy output from receivers array back to correct receiver objects
     if G.rxs:

gprMax/pml.py

@@ -21,6 +21,7 @@ from importlib import import_module
 import numpy as np
 from tqdm import tqdm
 
+import gprMax.config as config
 from gprMax.config import e0
 from gprMax.config import z0
 from gprMax.config import floattype
@@ -302,7 +303,7 @@ class PML(object):
             G (class): Grid class instance - holds essential parameters describing the model.
         """
 
-        self.bpg = (int(np.ceil(((self.EPhi1.shape[1] + 1) * (self.EPhi1.shape[2] + 1) * (self.EPhi1.shape[3] + 1)) / G.tpb[0])), 1, 1)
+        config.gpus.bpg = (int(np.ceil(((self.EPhi1.shape[1] + 1) * (self.EPhi1.shape[2] + 1) * (self.EPhi1.shape[3] + 1)) / config.gpus.tpb[0])), 1, 1)
 
     def gpu_initialise_arrays(self):
         """Initialise PML field and coefficient arrays on GPU."""
@@ -342,7 +343,7 @@ class PML(object):
             G (class): Grid class instance - holds essential parameters describing the model.
         """
 
-        self.update_electric_gpu(np.int32(self.xs), np.int32(self.xf), np.int32(self.ys), np.int32(self.yf), np.int32(self.zs), np.int32(self.zf), np.int32(self.EPhi1.shape[1]), np.int32(self.EPhi1.shape[2]), np.int32(self.EPhi1.shape[3]), np.int32(self.EPhi2.shape[1]), np.int32(self.EPhi2.shape[2]), np.int32(self.EPhi2.shape[3]), np.int32(self.thickness), G.ID_gpu.gpudata, G.Ex_gpu.gpudata, G.Ey_gpu.gpudata, G.Ez_gpu.gpudata, G.Hx_gpu.gpudata, G.Hy_gpu.gpudata, G.Hz_gpu.gpudata, self.EPhi1_gpu.gpudata, self.EPhi2_gpu.gpudata, self.ERA_gpu.gpudata, self.ERB_gpu.gpudata, self.ERE_gpu.gpudata, self.ERF_gpu.gpudata, floattype(self.d), block=G.tpb, grid=self.bpg)
+        self.update_electric_gpu(np.int32(self.xs), np.int32(self.xf), np.int32(self.ys), np.int32(self.yf), np.int32(self.zs), np.int32(self.zf), np.int32(self.EPhi1.shape[1]), np.int32(self.EPhi1.shape[2]), np.int32(self.EPhi1.shape[3]), np.int32(self.EPhi2.shape[1]), np.int32(self.EPhi2.shape[2]), np.int32(self.EPhi2.shape[3]), np.int32(self.thickness), G.ID_gpu.gpudata, G.Ex_gpu.gpudata, G.Ey_gpu.gpudata, G.Ez_gpu.gpudata, G.Hx_gpu.gpudata, G.Hy_gpu.gpudata, G.Hz_gpu.gpudata, self.EPhi1_gpu.gpudata, self.EPhi2_gpu.gpudata, self.ERA_gpu.gpudata, self.ERB_gpu.gpudata, self.ERE_gpu.gpudata, self.ERF_gpu.gpudata, floattype(self.d), block=config.gpus.tpb, grid=config.gpus.bpg)
 
     def gpu_update_magnetic(self, G):
         """This functions updates magnetic field components with the PML correction on the GPU.
@@ -351,7 +352,7 @@ class PML(object):
             G (class): Grid class instance - holds essential parameters describing the model.
         """
 
-        self.update_magnetic_gpu(np.int32(self.xs), np.int32(self.xf), np.int32(self.ys), np.int32(self.yf), np.int32(self.zs), np.int32(self.zf), np.int32(self.HPhi1.shape[1]), np.int32(self.HPhi1.shape[2]), np.int32(self.HPhi1.shape[3]), np.int32(self.HPhi2.shape[1]), np.int32(self.HPhi2.shape[2]), np.int32(self.HPhi2.shape[3]), np.int32(self.thickness), G.ID_gpu.gpudata, G.Ex_gpu.gpudata, G.Ey_gpu.gpudata, G.Ez_gpu.gpudata, G.Hx_gpu.gpudata, G.Hy_gpu.gpudata, G.Hz_gpu.gpudata, self.HPhi1_gpu.gpudata, self.HPhi2_gpu.gpudata, self.HRA_gpu.gpudata, self.HRB_gpu.gpudata, self.HRE_gpu.gpudata, self.HRF_gpu.gpudata, floattype(self.d), block=G.tpb, grid=self.bpg)
+        self.update_magnetic_gpu(np.int32(self.xs), np.int32(self.xf), np.int32(self.ys), np.int32(self.yf), np.int32(self.zs), np.int32(self.zf), np.int32(self.HPhi1.shape[1]), np.int32(self.HPhi1.shape[2]), np.int32(self.HPhi1.shape[3]), np.int32(self.HPhi2.shape[1]), np.int32(self.HPhi2.shape[2]), np.int32(self.HPhi2.shape[3]), np.int32(self.thickness), G.ID_gpu.gpudata, G.Ex_gpu.gpudata, G.Ey_gpu.gpudata, G.Ez_gpu.gpudata, G.Hx_gpu.gpudata, G.Hy_gpu.gpudata, G.Hz_gpu.gpudata, self.HPhi1_gpu.gpudata, self.HPhi2_gpu.gpudata, self.HRA_gpu.gpudata, self.HRB_gpu.gpudata, self.HRE_gpu.gpudata, self.HRF_gpu.gpudata, floattype(self.d), block=config.gpus.tpb, grid=config.gpus.bpg)
 
 
 def build_pmls(G, pbar):