1 /******************************************************************************/
2 /*!
3 * \file timlCNNDropoutInitialize.c
4 */
5 /* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the
17 * distribution.
18 *
19 * Neither the name of Texas Instruments Incorporated nor the names of
20 * its contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 ******************************************************************************/
38 /*******************************************************************************
39 *
40 * INCLUDES
41 *
42 ******************************************************************************/
44 #include "../api/timl.h"
47 /******************************************************************************/
48 /*!
49 * \ingroup cnn
50 * \brief Initialize the dropout layer
51 * \param[in] layer Dropout layer
52 * \return Error code
53 */
54 /******************************************************************************/
56 int timlCNNDropoutInitialize(timlCNNLayer *layer)
57 {
58 timlConvNeuralNetwork *cnn = layer->cnn;
59 if (layer->allocatorLevel == Util_AllocatorLevel1) {
60 // allocate feature map
61 if (timlUtilMallocAcc((void**) &(layer->featureMap), sizeof(float)*layer->maxBatchSize*layer->row*layer->col*layer->channel)) {
62 return ERROR_CNN_LAYER_ALLOCATION;
63 }
65 // allocate delta
66 if (timlUtilMallocAcc((void**) &(layer->delta), sizeof(float)*layer->maxBatchSize*layer->row*layer->col*layer->channel)) {
67 return ERROR_CNN_LAYER_ALLOCATION;
68 }
70 // allocate mask
71 if (timlUtilMallocAcc((void**) &(layer->dropoutParams.mask), sizeof(unsigned int)*layer->maxBatchSize*layer->row*layer->col*layer->channel)) {
72 return ERROR_CNN_LAYER_ALLOCATION;
73 }
74 }
76 if (layer->allocatorLevel == Util_AllocatorLevel2) {
77 // allocate feature map
78 if (timlUtilMallocAcc((void**) &(layer->featureMap), sizeof(float)*layer->maxBatchSize*layer->row*layer->col*layer->channel)) {
79 return ERROR_CNN_LAYER_ALLOCATION;
80 }
81 }
83 if (layer->allocatorLevel == Util_AllocatorLevel3) {
84 layer->featureMap = layer->prev->featureMap;
85 layer->memPoolPos = layer->prev->memPoolPos;
86 }
88 return 0;
89 }