def num_to_str(num):
if isinstance(num, COMPLEX_TYPES):
num = complex(num) #cast to python complex
if num == 0: return '0' #value is zero
elif num.imag == 0: return '%s'%eng_notation.num_to_str(num.real) #value is real
elif num.real == 0: return '%sj'%eng_notation.num_to_str(num.imag) #value is imaginary
elif num.imag < 0: return '%s-%sj'%(eng_notation.num_to_str(num.real), eng_notation.num_to_str(abs(num.imag)))
else: return '%s+%sj'%(eng_notation.num_to_str(num.real), eng_notation.num_to_str(num.imag))
else: return str(num)
def time_it(tb):
start = os.times()
tb.run()
stop = os.times()
delta = map((lambda a, b: a-b), stop, start)
user, sys, childrens_user, childrens_sys, real = delta
total_user = user + childrens_user
total_sys = sys + childrens_sys
if tb.machine_readable:
print "%3d %3d %.3e %7.3f %7.3f %7.3f %7.3f %.6e %.3e" % (
tb.npipes, tb.nstages, tb.nsamples, real, total_user, total_sys, (total_user+total_sys)/real, tb.flop, tb.flop/real)
else:
print "npipes %7d" % (tb.npipes,)
print "nstages %7d" % (tb.nstages,)
print "nsamples %s" % (eng_notation.num_to_str(tb.nsamples),)
print "real %7.3f" % (real,)
print "user %7.3f" % (total_user,)
print "sys %7.3f" % (total_sys,)
print "(user+sys)/real %7.3f" % ((total_user + total_sys)/real,)
print "pseudo_flop %s" % (eng_notation.num_to_str(tb.flop),)
print "pseudo_flop/real %s" % (eng_notation.num_to_str(tb.flop/real),)
def __init__(self):
gr.top_block.__init__(self)
default_nsamples = 10e6
parser=OptionParser(option_class=eng_option)
parser.add_option("-p", "--npipelines", type="intx", default=1,
metavar="NPIPES", help="the number of pipelines to create (default=%default)")
parser.add_option("-s", "--nstages", type="intx", default=1,
metavar="NSTAGES", help="the number of stages in each pipeline (default=%default)")
parser.add_option("-N", "--nsamples", type="eng_float", default=default_nsamples,
help=("the number of samples to run through the graph (default=%s)" %
(eng_notation.num_to_str(default_nsamples))))
parser.add_option("-m", "--machine-readable", action="store_true", default=False,
help="enable machine readable output")
(options, args) = parser.parse_args()
if len(args) != 0:
parser.print_help()
raise SystemExit, 1
self.npipes = options.npipelines
self.nstages = options.nstages
self.nsamples = options.nsamples
self.machine_readable = options.machine_readable
ntaps = 256
# Something vaguely like floating point ops
self.flop = 2 * ntaps * options.npipelines * options.nstages * options.nsamples
src = blocks.null_source(gr.sizeof_float)
head = blocks.head(gr.sizeof_float, int(options.nsamples))
self.connect(src, head)
for n in range(options.npipelines):
self.connect(head, pipeline(options.nstages, ntaps))