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#!/usr/bin/env python
import argparse
from boltzgen import Generator, Geometry
from boltzgen.lbm.model import BGK
import config
argparser = argparse.ArgumentParser(
description = 'Generate a CUDA implementation of a lid driven cavity simulation using LBM')
argparser.add_argument(
'--output', required = False, help = 'Target directory for the generated sources')
args = argparser.parse_args()
generator = Generator(
model = BGK(config.descriptor, tau = config.tau),
target = 'cuda',
precision = config.precision,
streaming = config.streaming,
index = config.index,
layout = 'SOA')
if args.output is None:
args.output = '.'
functions = ['collide_and_stream', 'equilibrilize', 'collect_moments', 'momenta_boundary']
if config.streaming == 'SSS':
functions += ['update_sss_control_structure']
extras = ['cell_list_dispatch']
with open('%s/kernel.h' % args.output, 'w') as kernel:
kernel.write(generator.kernel(config.geometry, functions, extras))
ldc_src = ''
with open('ldc.cuda.%s.mako' % config.streaming, 'r') as template:
ldc_src = template.read()
with open('%s/ldc.cu' % args.output, 'w') as app:
app.write(generator.custom(config.geometry, ldc_src))
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