def __init__(self, p_iter='fork', ncpus=None, **kwds):
"""
EXAMPLES::
sage: P = sage.parallel.decorate.Parallel(); P
<sage.parallel.decorate.Parallel instance at 0x...>
"""
# The default p_iter is currently the 'fork' implementation.
# This has changed.
self.p_iter = None
if isinstance(p_iter, (int, long, Integer)):
p_iter, ncpus = 'fork', p_iter
if ncpus is None:
from ncpus import ncpus as compute_ncpus
ncpus = compute_ncpus()
if p_iter == 'fork':
self.p_iter = p_iter_fork(ncpus, **kwds)
elif p_iter == 'multiprocessing':
self.p_iter = multiprocessing_sage.pyprocessing(ncpus)
elif p_iter == 'reference':
self.p_iter = p_iter_reference
elif isinstance(p_iter, str):
raise ValueError("unknown iterator '%s'" % p_iter)
else:
if self.p_iter is None:
self.p_iter = p_iter
def __init__(self, p_iter='fork', ncpus=None, **kwds):
"""
EXAMPLES::
sage: P = sage.parallel.decorate.Parallel(); P
<sage.parallel.decorate.Parallel instance at 0x...>
"""
# The default p_iter is currently the 'fork' implementation.
# This has changed.
self.p_iter = None
if isinstance(p_iter, (int, long, Integer)):
p_iter, ncpus = 'fork', p_iter
if ncpus is None:
from ncpus import ncpus as compute_ncpus
ncpus = compute_ncpus()
if p_iter == 'fork':
self.p_iter = p_iter_fork(ncpus, **kwds)
elif p_iter == 'multiprocessing':
self.p_iter = multiprocessing_sage.pyprocessing(ncpus)
elif p_iter == 'reference':
self.p_iter = p_iter_reference
elif isinstance(p_iter, str):
raise ValueError, "unknown iterator '%s'" % p_iter
else:
if self.p_iter is None:
self.p_iter = p_iter