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git pushMerge branch 'devel' of github.com:SheffieldML/GPy into devel

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Max Zwiessele 2015-09-07 17:26:30 +01:00
commit bcc1e7c8d4
1 changed files with 19 additions and 0 deletions
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19
GPy/util/parallel.py
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@ -39,3 +39,22 @@ def divide_data(datanum, rank, size):
size = datanum/size
offset = size*rank+residue
return offset, offset+size, datanum_list
def optimize_parallel(model, optimizer=None, messages=True, max_iters=1000, outpath='.', interval=100, name=None):
from math import ceil
from datetime import datetime
import os
if name is None: name = model.name
stop = 0
for iter in range(int(ceil(float(max_iters)/interval))):
model.optimize(optimizer=optimizer, messages= True if messages and model.mpi_comm.rank==model.mpi_root else False, max_iters=interval)
if model.mpi_comm.rank==model.mpi_root:
timenow = datetime.now()
timestr = timenow.strftime('%Y:%m:%d_%H:%M:%S')
model.save(os.path.join(outpath, name+'_'+timestr+'.h5'))
opt = model.optimization_runs[-1]
if opt.funct_eval<opt.max_f_eval:
stop = 1
stop = model.mpi_comm.bcast(stop, root=model.mpi_root)
if stop:
break