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import pyopencl as cl
mf = cl.mem_flags
import numpy
import matplotlib
matplotlib.use('AGG')
import matplotlib.pyplot as plt
class CellList:
def __init__(self, context, queue, float_type, cells):
self.cl_cells = cl.Buffer(context, mf.READ_ONLY, size=len(cells) * numpy.uint32(0).nbytes)
self.np_cells = numpy.ndarray(shape=(len(cells), 1), dtype=numpy.uint32)
self.np_cells[:,0] = cells[:]
cl.enqueue_copy(queue, self.cl_cells, self.np_cells).wait();
def get(self):
return self.cl_cells
def size(self):
return (len(self.np_cells), 1, 1)
def generate_moment_plots(lattice, moments):
for i, m in enumerate(moments):
print("Generating plot %d of %d." % (i+1, len(moments)))
gid = lattice.memory.gid
velocity = numpy.reshape(
[ numpy.sqrt(m[gid(x,y)*3+1]**2 + m[gid(x,y)*3+2]**2) for x, y in lattice.geometry.inner_cells() ],
lattice.geometry.inner_size())
plt.figure(figsize=(10, 10))
plt.imshow(velocity, origin='lower', cmap=plt.get_cmap('seismic'))
plt.savefig("result/ldc_2d_%02d.png" % i, bbox_inches='tight', pad_inches=0)
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