# Copyright (c) 2013, Guillaume Desjardins, Razvan Pascanu.
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#   * Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#   * Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#   * Neither the name of the <organization> nor the
#     names of its contributors may be used to endorse or promote products
#     derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import numpy
import theano

def print_mem(context=None):
    if theano.sandbox.cuda.cuda_enabled:
        rvals = theano.sandbox.cuda.cuda_ndarray.cuda_ndarray.mem_info()
        # Avaliable memory in Mb
        available = float(rvals[0]) / 1024. / 1024.
        # Total memory in Mb
        total = float(rvals[1]) / 1024. / 1024.
        if context == None:
            print ('Used %.3f Mb Free %.3f Mb, total %.3f Mb' %
                   (total - available, available, total))
        else:
            info = str(context)
            print (('GPU status : Used %.3f Mb Free %.3f Mb,'
                    'total %.3f Mb [context %s]') %
                    (total - available, available, total, info))
