diff options
Diffstat (limited to 'lid_driven_cavity/opencl_gl_interop')
| -rw-r--r-- | lid_driven_cavity/opencl_gl_interop/AA.py | 99 | ||||
| -rw-r--r-- | lid_driven_cavity/opencl_gl_interop/AB.py | 102 | ||||
| l--------- | lid_driven_cavity/opencl_gl_interop/lattice/AA.py | 1 | ||||
| l--------- | lid_driven_cavity/opencl_gl_interop/lattice/AB.py | 1 | ||||
| -rw-r--r-- | lid_driven_cavity/opencl_gl_interop/ldc_2d.py | 35 |
5 files changed, 24 insertions, 214 deletions
diff --git a/lid_driven_cavity/opencl_gl_interop/AA.py b/lid_driven_cavity/opencl_gl_interop/AA.py index ca9a132..1322856 100644 --- a/lid_driven_cavity/opencl_gl_interop/AA.py +++ b/lid_driven_cavity/opencl_gl_interop/AA.py @@ -1,105 +1,8 @@ import pyopencl as cl -mf = cl.mem_flags - -from pyopencl.tools import get_gl_sharing_context_properties - -import numpy from common import MomentsTextureBase -class Memory: - def __init__(self, descriptor, geometry, context, float_type): - self.context = context - self.float_type = float_type - - self.size_x = geometry.size_x - self.size_y = geometry.size_y - self.size_z = geometry.size_z - self.volume = self.size_x * self.size_y * self.size_z - - self.pop_size = descriptor.q * self.volume * self.float_type(0).nbytes - self.moments_size = 3 * self.volume * self.float_type(0).nbytes - - self.cl_pop = cl.Buffer(self.context, mf.READ_WRITE, size=self.pop_size) - - self.cl_moments = cl.Buffer(self.context, mf.WRITE_ONLY, size=self.moments_size) - - def gid(self, x, y, z = 0): - return z * (self.size_x*self.size_y) + y * self.size_x + x; - -class Lattice: - def __init__(self, geometry, kernel_src, descriptor, platform = 0, precision = 'single'): - self.geometry = geometry - self.descriptor = descriptor - - self.float_type = { - 'single': (numpy.float32, 'float'), - 'double': (numpy.float64, 'double'), - }.get(precision, None) - - self.platform = cl.get_platforms()[platform] - self.layout = None - - self.context = cl.Context( - properties=[(cl.context_properties.PLATFORM, self.platform)] + get_gl_sharing_context_properties()) - - self.queue = cl.CommandQueue(self.context) - - self.memory = Memory(descriptor, self.geometry, self.context, self.float_type[0]) - self.tick = False - - self.compiler_args = { - 'single': '-cl-single-precision-constant -cl-fast-relaxed-math', - 'double': '-cl-fast-relaxed-math' - }.get(precision, None) - - self.build_kernel(kernel_src) - - self.program.equilibrilize_all( - self.queue, self.geometry.size(), self.layout, self.memory.cl_pop).wait() - - self.tick_tasks = [] - self.tock_tasks = [] - - def build_kernel(self, src): - self.program = cl.Program(self.context, src).build(self.compiler_args) - - def schedule_tick(self, f, cells, *params): - self.tick_tasks += [ (eval("self.program.%s" % f), cells, params) ] - - def schedule_tock(self, f, cells, *params): - self.tock_tasks += [ (eval("self.program.%s" % f), cells, params) ] - - def evolve(self): - if self.tick: - self.tick = False - for f, cells, params in self.tick_tasks: - f(self.queue, cells.size(), self.layout, self.memory.cl_pop, cells.get(), *params) - else: - self.tick = True - for f, cells, params in self.tock_tasks: - f(self.queue, cells.size(), self.layout, self.memory.cl_pop, cells.get(), *params) - - def sync(self): - self.queue.finish() - - def get_moments(self): - moments = numpy.ndarray(shape=(self.memory.volume*(self.descriptor.d+1),1), dtype=self.float_type[0]) - - self.program.collect_moments_all( - self.queue, self.geometry.size(), self.layout, self.memory.cl_pop, self.memory.cl_moments) - - cl.enqueue_copy(self.queue, moments, self.memory.cl_moments).wait(); - - return moments - -HelperTemplate = """ -__kernel void equilibrilize_all(__global ${float_type}* f_next) -{ - const unsigned int gid = ${index.gid('get_global_id(0)', 'get_global_id(1)')}; - equilibrilize_tick(f_next, gid); -} -""" +from lattice.AA import Lattice class MomentsTexture(MomentsTextureBase): pass diff --git a/lid_driven_cavity/opencl_gl_interop/AB.py b/lid_driven_cavity/opencl_gl_interop/AB.py index f6b437c..fce10d9 100644 --- a/lid_driven_cavity/opencl_gl_interop/AB.py +++ b/lid_driven_cavity/opencl_gl_interop/AB.py @@ -1,108 +1,8 @@ import pyopencl as cl -mf = cl.mem_flags - -from pyopencl.tools import get_gl_sharing_context_properties - -import numpy from common import MomentsTextureBase -class Memory: - def __init__(self, descriptor, geometry, context, float_type): - self.context = context - self.float_type = float_type - - self.size_x = geometry.size_x - self.size_y = geometry.size_y - self.size_z = geometry.size_z - self.volume = self.size_x * self.size_y * self.size_z - - self.pop_size = descriptor.q * self.volume * self.float_type(0).nbytes - self.moments_size = 3 * self.volume * self.float_type(0).nbytes - - self.cl_pop_a = cl.Buffer(self.context, mf.READ_WRITE, size=self.pop_size) - self.cl_pop_b = cl.Buffer(self.context, mf.READ_WRITE, size=self.pop_size) - - self.cl_moments = cl.Buffer(self.context, mf.WRITE_ONLY, size=self.moments_size) - - def gid(self, x, y, z = 0): - return z * (self.size_x*self.size_y) + y * self.size_x + x; - -class Lattice: - def __init__(self, geometry, kernel_src, descriptor, platform = 0, precision = 'single'): - self.geometry = geometry - self.descriptor = descriptor - - self.float_type = { - 'single': (numpy.float32, 'float'), - 'double': (numpy.float64, 'double'), - }.get(precision, None) - - self.platform = cl.get_platforms()[platform] - self.layout = None - - self.context = cl.Context( - properties=[(cl.context_properties.PLATFORM, self.platform)] + get_gl_sharing_context_properties()) - - self.queue = cl.CommandQueue(self.context) - - self.memory = Memory(descriptor, self.geometry, self.context, self.float_type[0]) - self.tick = False - - self.compiler_args = { - 'single': '-cl-single-precision-constant -cl-fast-relaxed-math', - 'double': '-cl-fast-relaxed-math' - }.get(precision, None) - - self.build_kernel(kernel_src) - - self.program.equilibrilize_all( - self.queue, self.geometry.size(), self.layout, self.memory.cl_pop_a, self.memory.cl_pop_b).wait() - - self.tasks = [] - - def build_kernel(self, src): - self.program = cl.Program(self.context, src).build(self.compiler_args) - - def schedule(self, f, cells, *params): - self.tasks += [ (eval("self.program.%s" % f), cells, params) ] - - def evolve(self): - if self.tick: - self.tick = False - for f, cells, params in self.tasks: - f(self.queue, cells.size(), self.layout, self.memory.cl_pop_a, self.memory.cl_pop_b, cells.get(), *params) - else: - self.tick = True - for f, cells, params in self.tasks: - f(self.queue, cells.size(), self.layout, self.memory.cl_pop_b, self.memory.cl_pop_a, cells.get(), *params) - - def sync(self): - self.queue.finish() - - def get_moments(self): - moments = numpy.ndarray(shape=(self.memory.volume*(self.descriptor.d+1),1), dtype=self.float_type[0]) - - if self.tick: - self.program.collect_moments_all( - self.queue, self.geometry.size(), self.layout, self.memory.cl_pop_b, self.memory.cl_moments) - else: - self.program.collect_moments_all( - self.queue, self.geometry.size(), self.layout, self.memory.cl_pop_a, self.memory.cl_moments) - - cl.enqueue_copy(self.queue, moments, self.memory.cl_moments).wait(); - - return moments - -HelperTemplate = """ -__kernel void equilibrilize_all(__global ${float_type}* f_next, - __global ${float_type}* f_prev) -{ - const unsigned int gid = ${index.gid('get_global_id(0)', 'get_global_id(1)')}; - equilibrilize(f_next, f_prev, gid); - equilibrilize(f_prev, f_next, gid); -} -""" +from lattice.AB import Lattice class MomentsTexture(MomentsTextureBase): pass diff --git a/lid_driven_cavity/opencl_gl_interop/lattice/AA.py b/lid_driven_cavity/opencl_gl_interop/lattice/AA.py new file mode 120000 index 0000000..7ca466f --- /dev/null +++ b/lid_driven_cavity/opencl_gl_interop/lattice/AA.py @@ -0,0 +1 @@ +../../opencl/AA.py
\ No newline at end of file diff --git a/lid_driven_cavity/opencl_gl_interop/lattice/AB.py b/lid_driven_cavity/opencl_gl_interop/lattice/AB.py new file mode 120000 index 0000000..769b0aa --- /dev/null +++ b/lid_driven_cavity/opencl_gl_interop/lattice/AB.py @@ -0,0 +1 @@ +../../opencl/AB.py
\ No newline at end of file diff --git a/lid_driven_cavity/opencl_gl_interop/ldc_2d.py b/lid_driven_cavity/opencl_gl_interop/ldc_2d.py index daac486..ac8119b 100644 --- a/lid_driven_cavity/opencl_gl_interop/ldc_2d.py +++ b/lid_driven_cavity/opencl_gl_interop/ldc_2d.py @@ -2,6 +2,9 @@ import numpy import time from string import Template +import pyopencl as cl +from pyopencl.tools import get_gl_sharing_context_properties + from boltzgen import Generator, Geometry from boltzgen.lbm.lattice import D2Q9 from boltzgen.lbm.model import BGK @@ -40,7 +43,6 @@ def glut_window(fullscreen = False): window = glut_window(fullscreen = False) Lattice = eval('%s.Lattice' % streaming) -HelperTemplate = eval('%s.HelperTemplate' % streaming) MomentsTexture = eval('%s.MomentsTexture' % streaming) generator = Generator( @@ -51,10 +53,13 @@ generator = Generator( index = 'ZYX', layout = 'SOA') -kernel_src = generator.kernel(geometry, functions, extras) -kernel_src += generator.custom(geometry, HelperTemplate) +kernel_src = generator.kernel(geometry, functions, extras) + +cl_platform = cl.get_platforms()[0] +cl_context = cl.Context(properties=[(cl.context_properties.PLATFORM, cl_platform)] + get_gl_sharing_context_properties()) +cl_queue = cl.CommandQueue(cl_context) -lattice = Lattice(geometry, kernel_src, D2Q9, precision = precision) +lattice = Lattice(geometry, kernel_src, D2Q9, cl_context, cl_queue, precision = precision) moments = MomentsTexture(lattice) gid = lattice.memory.gid @@ -69,19 +74,19 @@ lid_cells = CellList(lattice.context, lattice.queue, lattice.float_type, [ gid(x,y) for x, y in geometry.inner_cells() if y == geometry.size_y-2 ]) if streaming == 'AB': - lattice.schedule('collide_and_stream_cells', bulk_cells) - lattice.schedule('velocity_momenta_boundary_cells', wall_cells, numpy.array([0.0, 0.0], dtype=lattice.float_type[0])) - lattice.schedule('velocity_momenta_boundary_cells', lid_cells, numpy.array([0.1, 0.0], dtype=lattice.float_type[0])) + lattice.schedule('collide_and_stream', bulk_cells) + lattice.schedule('velocity_momenta_boundary', wall_cells, numpy.array([0.0, 0.0], dtype=lattice.float_type[0])) + lattice.schedule('velocity_momenta_boundary', lid_cells, numpy.array([0.1, 0.0], dtype=lattice.float_type[0])) elif streaming == 'AA': - lattice.schedule_tick('collide_and_stream_cells_tick', bulk_cells) - lattice.schedule_tick('velocity_momenta_boundary_cells_tick', wall_cells, numpy.array([0.0, 0.0], dtype=lattice.float_type[0])) - lattice.schedule_tick('velocity_momenta_boundary_cells_tick', lid_cells, numpy.array([0.1, 0.0], dtype=lattice.float_type[0])) - - lattice.schedule_tock('equilibrilize_cells_tick', ghost_cells) - lattice.schedule_tock('collide_and_stream_cells_tock', bulk_cells) - lattice.schedule_tock('velocity_momenta_boundary_cells_tock', wall_cells, numpy.array([0.0, 0.0], dtype=lattice.float_type[0])) - lattice.schedule_tock('velocity_momenta_boundary_cells_tock', lid_cells, numpy.array([0.1, 0.0], dtype=lattice.float_type[0])) + lattice.schedule_tick('collide_and_stream_tick', bulk_cells) + lattice.schedule_tick('velocity_momenta_boundary_tick', wall_cells, numpy.array([0.0, 0.0], dtype=lattice.float_type[0])) + lattice.schedule_tick('velocity_momenta_boundary_tick', lid_cells, numpy.array([0.1, 0.0], dtype=lattice.float_type[0])) + + lattice.schedule_tock('equilibrilize_tick', ghost_cells) + lattice.schedule_tock('collide_and_stream_tock', bulk_cells) + lattice.schedule_tock('velocity_momenta_boundary_tock', wall_cells, numpy.array([0.0, 0.0], dtype=lattice.float_type[0])) + lattice.schedule_tock('velocity_momenta_boundary_tock', lid_cells, numpy.array([0.1, 0.0], dtype=lattice.float_type[0])) def get_projection(width, height): |