/[escript]/trunk/escript/src/BinaryOp.h
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Annotation of /trunk/escript/src/BinaryOp.h

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Revision 122 - (hide annotations)
Thu Jun 9 05:38:05 2005 UTC (14 years, 4 months ago) by jgs
Original Path: trunk/esys2/escript/src/Data/BinaryOp.h
File MIME type: text/plain
File size: 6582 byte(s)
Merge of development branch back to main trunk on 2005-06-09

1 jgs 82 /*
2     ******************************************************************************
3     * *
4     * COPYRIGHT ACcESS 2004 - All Rights Reserved *
5     * *
6     * This software is the property of ACcESS. No part of this code *
7     * may be copied in any form or by any means without the expressed written *
8     * consent of ACcESS. Copying, use or modification of this software *
9     * by any unauthorised person is illegal unless that person has a software *
10     * license agreement with ACcESS. *
11     * *
12     ******************************************************************************
13     */
14    
15     #if !defined escript_BinaryOp_20040315_H
16     #define escript_BinaryOp_20040315_H
17    
18     #include "escript/Data/DataException.h"
19     #include "escript/Data/DataArrayView.h"
20     #include "escript/Data/DataConstant.h"
21     #include "escript/Data/DataExpanded.h"
22    
23     #include <iostream>
24     #include <boost/scoped_ptr.hpp>
25     #include <functional>
26     #include <string>
27    
28     namespace escript {
29     /**
30     \brief
31     Perform the given binary operation.
32     \param left Input/Output - The left hand side.
33     \param right Input - The right hand side.
34 jgs 121 \param operation Input - The operation to perform.
35 jgs 82 */
36     template <class BinaryFunction>
37     inline void binaryOp(DataTagged& left, const DataConstant& right,
38     BinaryFunction operation)
39     {
40     //
41     // perform the operation on each tagged value including the default
42     binaryOp(left,right.getPointDataView(),operation);
43     }
44    
45     template <class BinaryFunction>
46     inline void binaryOp(DataTagged& left, const DataArrayView& right,
47     BinaryFunction operation)
48     {
49     //
50     // perform the operation on each tagged value including the default
51     const DataTagged::DataMapType& lookup=left.getTagLookup();
52     DataTagged::DataMapType::const_iterator i;
53     DataTagged::DataMapType::const_iterator lookupEnd=lookup.end();
54     DataArrayView& leftView=left.getPointDataView();
55     if (right.getRank()==0) {
56 jgs 122 for (i=lookup.begin();i!=lookupEnd;i++) {
57 jgs 82 leftView.binaryOp(i->second,right(),operation);
58     }
59     } else {
60 jgs 122 for (i=lookup.begin();i!=lookupEnd;i++) {
61 jgs 82 leftView.binaryOp(i->second,right,right.getOffset(),operation);
62     }
63     }
64     //
65     // finally perform the operation on the default value
66     left.getDefaultValue().binaryOp(right,operation);
67     }
68    
69     template <class BinaryFunction>
70     inline void binaryOp(DataTagged& left, const DataTagged& right,
71     BinaryFunction operation)
72     {
73     //
74     // Add the right hand tag keys which can't currently be found on the left
75     const DataTagged::DataMapType& rightLookup=right.getTagLookup();
76     DataTagged::DataMapType::const_iterator i;
77     DataTagged::DataMapType::const_iterator rightLookupEnd=rightLookup.end();
78 jgs 122 for (i=rightLookup.begin();i!=rightLookupEnd;i++) {
79 jgs 82 //
80     // Add the right hand tag to the left hand tag list and assign
81     // the rights default value. If the tag already exists the
82     // attempt to add it again will be ignored.
83     left.addTaggedValue(i->first,right.getDefaultValue());
84     }
85     //
86     // Perform the operation. Any tags originally in the left which don't exist for
87     // the right hand side will use the right's default value as the right operand
88     const DataTagged::DataMapType& leftLookup=left.getTagLookup();
89     DataTagged::DataMapType::const_iterator leftLookupEnd=leftLookup.end();
90 jgs 122 for (i=leftLookup.begin();i!=leftLookupEnd;i++) {
91     left.getDataPointByTag(i->first).binaryOp(right.getDataPointByTag(i->first),operation);
92 jgs 82 }
93     //
94     // finally perform the operation on the default value
95     left.getDefaultValue().binaryOp(right.getDefaultValue(),operation);
96     }
97    
98     template <class BinaryFunction>
99     inline void binaryOp(DataConstant& left, const DataConstant& right,
100     BinaryFunction operation)
101     {
102     //
103     // As DataConstant there is only one point data
104     binaryOp(left,right.getPointDataView(),operation);
105     }
106    
107     template <class BinaryFunction>
108     inline void binaryOp(DataConstant& left, const DataArrayView& right,
109     BinaryFunction operation)
110     {
111     //
112     // perform an operand check, this will throw on error
113     if (right.getRank()==0) {
114     //
115     // special case of applying a single value to the entire array
116 jgs 122 left.getPointDataView().binaryOp(right(),operation);
117 jgs 82 } else {
118 jgs 122 left.getPointDataView().binaryOp(right,operation);
119 jgs 82 }
120     }
121    
122     template <class BinaryFunction>
123     inline void binaryOp(DataExpanded& left, const DataAbstract& right,
124     BinaryFunction operation)
125     {
126     int i,j;
127     DataArrayView::ValueType::size_type numDPPSample=left.getNumDPPSample();
128     DataArrayView::ValueType::size_type numSamples=left.getNumSamples();
129     if (right.getPointDataView().getRank()==0) {
130     //
131     // This will call the double version of binaryOp
132 jgs 122 #pragma omp parallel for private(i,j) schedule(static)
133     for (i=0;i<numSamples;i++) {
134     for (j=0;j<numDPPSample;j++) {
135 jgs 82 left.getPointDataView().binaryOp(left.getPointOffset(i,j),
136 jgs 122 right.getPointDataView().getData(right.getPointOffset(i,j)),
137     operation);
138 jgs 82 }
139     }
140     } else {
141 jgs 122 #pragma omp parallel for private(i,j) schedule(static)
142     for (i=0;i<numSamples;i++) {
143     for (j=0;j<numDPPSample;j++) {
144 jgs 82 left.getPointDataView().binaryOp(left.getPointOffset(i,j),
145     right.getPointDataView(),
146     right.getPointOffset(i,j),
147     operation);
148     }
149     }
150     }
151     }
152    
153     template <class BinaryFunction>
154     inline void binaryOp(DataExpanded& left, const DataArrayView& right,
155     BinaryFunction operation)
156     {
157     int i,j;
158     DataArrayView::ValueType::size_type numDPPSample=left.getNumDPPSample();
159     DataArrayView::ValueType::size_type numSamples=left.getNumSamples();
160     if (right.getRank()==0) {
161     //
162     // This will call the double version of binaryOp
163 jgs 122 #pragma omp parallel for private(i,j) schedule(static)
164     for (i=0;i<numSamples;i++) {
165     for (j=0;j<numDPPSample;j++) {
166 jgs 82 left.getPointDataView().binaryOp(left.getPointOffset(i,j),
167 jgs 122 right(),
168     operation);
169 jgs 82 }
170     }
171     } else {
172 jgs 122 #pragma omp parallel for private(i,j) schedule(static)
173     for (i=0;i<numSamples;i++) {
174     for (j=0;j<numDPPSample;j++) {
175 jgs 82 left.getPointDataView().binaryOp(left.getPointOffset(i,j),
176 jgs 122 right,
177     0,
178 jgs 82 operation);
179     }
180     }
181     }
182     }
183    
184     } // end of namespace
185 jgs 122
186 jgs 82 #endif

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