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<h1>mess.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// "mess.cpp"</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003 <span class="comment">// (c) OPAC Team, LIFL, August 2005</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="comment">/* </span>
<a name="l00006"></a>00006 <span class="comment"> Contact: paradiseo-help@lists.gforge.inria.fr</span>
<a name="l00007"></a>00007 <span class="comment">*/</span>
<a name="l00008"></a>00008
<a name="l00009"></a>00009 <span class="preprocessor">#include &lt;mpi.h&gt;</span>
<a name="l00010"></a>00010 <span class="preprocessor">#include &lt;vector&gt;</span>
<a name="l00011"></a>00011
<a name="l00012"></a>00012 <span class="preprocessor">#include "mess.h"</span>
<a name="l00013"></a>00013 <span class="preprocessor">#include "../../core/peo_debug.h"</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include "node.h"</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="preprocessor">#define MPI_BUF_SIZE 1024*64</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span>
<a name="l00018"></a>00018 <span class="keyword">static</span> <span class="keywordtype">char</span> mpi_buf [MPI_BUF_SIZE];
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="keyword">static</span> <span class="keywordtype">int</span> pos_buf ;
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="keyword">static</span> std :: vector &lt;char *&gt; act_buf; <span class="comment">/* Active buffers */</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="keyword">static</span> std :: vector &lt;MPI_Request *&gt; act_req; <span class="comment">/* Active requests */</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="keywordtype">void</span> cleanBuffers () {
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i &lt; act_req.size ();) {
<a name="l00029"></a>00029
<a name="l00030"></a>00030 MPI_Status stat ;
<a name="l00031"></a>00031 <span class="keywordtype">int</span> flag ;
<a name="l00032"></a>00032 MPI_Test (act_req [i], &amp; flag, &amp; stat) ;
<a name="l00033"></a>00033 <span class="keywordflow">if</span> (flag) {
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="keyword">delete</span> act_buf [i] ;
<a name="l00036"></a>00036 <span class="keyword">delete</span> act_req [i] ;
<a name="l00037"></a>00037
<a name="l00038"></a>00038 act_buf [i] = act_buf.back () ;
<a name="l00039"></a>00039 act_buf.pop_back () ;
<a name="l00040"></a>00040
<a name="l00041"></a>00041 act_req [i] = act_req.back () ;
<a name="l00042"></a>00042 act_req.pop_back () ;
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044 <span class="keywordflow">else</span>
<a name="l00045"></a>00045 i ++;
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keywordtype">void</span> waitBuffers () {
<a name="l00050"></a>00050
<a name="l00051"></a>00051 printDebugMessage (<span class="stringliteral">"waiting the termination of the asynchronous operations to complete"</span>);
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i &lt; act_req.size (); i ++) {
<a name="l00054"></a>00054
<a name="l00055"></a>00055 MPI_Status stat ;
<a name="l00056"></a>00056
<a name="l00057"></a>00057 MPI_Wait (act_req [i], &amp; stat) ;
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keyword">delete</span> act_buf [i] ;
<a name="l00060"></a>00060 <span class="keyword">delete</span> act_req [i] ;
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="keywordtype">bool</span> probeMessage (<span class="keywordtype">int</span> &amp; __src, <span class="keywordtype">int</span> &amp; __tag) {
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="keywordtype">int</span> flag;
<a name="l00067"></a>00067
<a name="l00068"></a>00068 MPI_Status stat;
<a name="l00069"></a>00069
<a name="l00070"></a>00070 MPI_Iprobe (MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &amp; flag, &amp; stat);
<a name="l00071"></a>00071
<a name="l00072"></a>00072 __src = stat.MPI_SOURCE;
<a name="l00073"></a>00073 __tag = stat.MPI_TAG;
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keywordflow">return</span> flag;
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="keywordtype">void</span> waitMessage () {
<a name="l00079"></a>00079
<a name="l00080"></a>00080 MPI_Status stat;
<a name="l00081"></a>00081
<a name="l00082"></a>00082 MPI_Probe (MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &amp; stat);
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keywordtype">void</span> initMessage () {
<a name="l00086"></a>00086
<a name="l00087"></a>00087 pos_buf = 0;
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="keywordtype">void</span> sendMessage (<span class="keywordtype">int</span> __to, <span class="keywordtype">int</span> __tag) {
<a name="l00091"></a>00091
<a name="l00092"></a>00092 cleanBuffers ();
<a name="l00093"></a>00093 act_buf.push_back (<span class="keyword">new</span> <span class="keywordtype">char</span> [pos_buf]);
<a name="l00094"></a>00094 act_req.push_back (<span class="keyword">new</span> MPI_Request);
<a name="l00095"></a>00095 memcpy (act_buf.back (), mpi_buf, pos_buf);
<a name="l00096"></a>00096 MPI_Isend (act_buf.back (), pos_buf, MPI_PACKED, __to, __tag, MPI_COMM_WORLD, act_req.back ());
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keywordtype">void</span> sendMessageToAll (<span class="keywordtype">int</span> __tag) {
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; getNumberOfNodes (); i ++)
<a name="l00102"></a>00102 sendMessage (i, __tag);
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keywordtype">void</span> receiveMessage (<span class="keywordtype">int</span> __from, <span class="keywordtype">int</span> __tag) {
<a name="l00106"></a>00106
<a name="l00107"></a>00107 MPI_Status stat;
<a name="l00108"></a>00108 MPI_Request req;
<a name="l00109"></a>00109
<a name="l00110"></a>00110 MPI_Irecv (mpi_buf, MPI_BUF_SIZE, MPI_PACKED, __from, __tag, MPI_COMM_WORLD, &amp; req) ;
<a name="l00111"></a>00111 MPI_Wait (&amp; req, &amp; stat) ;
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="comment">/* Char */</span>
<a name="l00115"></a>00115 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">char</span> &amp; __c) {
<a name="l00116"></a>00116
<a name="l00117"></a>00117 MPI_Pack ((<span class="keywordtype">void</span> *) &amp; __c, 1, MPI_CHAR, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="comment">/* Float */</span>
<a name="l00121"></a>00121 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">float</span> &amp; __f, <span class="keywordtype">int</span> __nitem) {
<a name="l00122"></a>00122
<a name="l00123"></a>00123 MPI_Pack ((<span class="keywordtype">void</span> *) &amp; __f, __nitem, MPI_FLOAT, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="comment">/* Double */</span>
<a name="l00127"></a>00127 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">double</span> &amp; __d, <span class="keywordtype">int</span> __nitem) {
<a name="l00128"></a>00128
<a name="l00129"></a>00129 MPI_Pack ((<span class="keywordtype">void</span> *) &amp; __d, __nitem, MPI_DOUBLE, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="comment">/* Integer */</span>
<a name="l00133"></a>00133 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">int</span> &amp; __i, <span class="keywordtype">int</span> __nitem) {
<a name="l00134"></a>00134
<a name="l00135"></a>00135 MPI_Pack ((<span class="keywordtype">void</span> *) &amp; __i, __nitem, MPI_INT, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00136"></a>00136 }
<a name="l00137"></a>00137
<a name="l00138"></a>00138 <span class="comment">/* Unsigned int. */</span>
<a name="l00139"></a>00139 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &amp; __ui, <span class="keywordtype">int</span> __nitem) {
<a name="l00140"></a>00140
<a name="l00141"></a>00141 MPI_Pack ((<span class="keywordtype">void</span> *) &amp; __ui, __nitem, MPI_UNSIGNED, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="comment">/* Short int. */</span>
<a name="l00145"></a>00145 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">short</span> &amp; __sh, <span class="keywordtype">int</span> __nitem) {
<a name="l00146"></a>00146
<a name="l00147"></a>00147 MPI_Pack ((<span class="keywordtype">void</span> *) &amp; __sh, __nitem, MPI_SHORT, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00148"></a>00148 }
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="comment">/* Unsigned short */</span>
<a name="l00151"></a>00151 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> &amp; __ush, <span class="keywordtype">int</span> __nitem) {
<a name="l00152"></a>00152
<a name="l00153"></a>00153 MPI_Pack ((<span class="keywordtype">void</span> *) &amp; __ush, __nitem, MPI_UNSIGNED_SHORT, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="comment">/* Long */</span>
<a name="l00157"></a>00157 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">long</span> &amp; __l, <span class="keywordtype">int</span> __nitem) {
<a name="l00158"></a>00158
<a name="l00159"></a>00159 MPI_Pack ((<span class="keywordtype">void</span> *) &amp; __l, __nitem, MPI_LONG, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <span class="comment">/* Unsigned long */</span>
<a name="l00163"></a>00163 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> &amp; __ul, <span class="keywordtype">int</span> __nitem) {
<a name="l00164"></a>00164
<a name="l00165"></a>00165 MPI_Pack ((<span class="keywordtype">void</span> *) &amp; __ul, __nitem, MPI_UNSIGNED_LONG, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00166"></a>00166 }
<a name="l00167"></a>00167
<a name="l00168"></a>00168 <span class="comment">/* String */</span>
<a name="l00169"></a>00169 <span class="keywordtype">void</span> pack (<span class="keyword">const</span> <span class="keywordtype">char</span> * __str) {
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="keywordtype">int</span> len = strlen (__str) + 1;
<a name="l00172"></a>00172 MPI_Pack (&amp; len, 1, MPI_INT, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00173"></a>00173 MPI_Pack ((<span class="keywordtype">void</span> *) __str, len, MPI_CHAR, mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, MPI_COMM_WORLD);
<a name="l00174"></a>00174 }
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="comment">/* Char */</span>
<a name="l00177"></a>00177 <span class="keywordtype">void</span> unpack (<span class="keywordtype">char</span> &amp; __c) {
<a name="l00178"></a>00178
<a name="l00179"></a>00179 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; __c, 1, MPI_CHAR, MPI_COMM_WORLD);
<a name="l00180"></a>00180 }
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="comment">/* Float */</span>
<a name="l00183"></a>00183 <span class="keywordtype">void</span> unpack (<span class="keywordtype">float</span> &amp; __f, <span class="keywordtype">int</span> __nitem) {
<a name="l00184"></a>00184
<a name="l00185"></a>00185 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; __f, __nitem, MPI_FLOAT, MPI_COMM_WORLD);
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="comment">/* Double */</span>
<a name="l00189"></a>00189 <span class="keywordtype">void</span> unpack (<span class="keywordtype">double</span> &amp; __d, <span class="keywordtype">int</span> __nitem) {
<a name="l00190"></a>00190
<a name="l00191"></a>00191 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; __d, __nitem, MPI_DOUBLE, MPI_COMM_WORLD);
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193
<a name="l00194"></a>00194 <span class="comment">/* Integer */</span>
<a name="l00195"></a>00195 <span class="keywordtype">void</span> unpack (<span class="keywordtype">int</span> &amp; __i, <span class="keywordtype">int</span> __nitem) {
<a name="l00196"></a>00196
<a name="l00197"></a>00197 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; __i, __nitem, MPI_INT, MPI_COMM_WORLD);
<a name="l00198"></a>00198 }
<a name="l00199"></a>00199
<a name="l00200"></a>00200 <span class="comment">/* Unsigned int. */</span>
<a name="l00201"></a>00201 <span class="keywordtype">void</span> unpack (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &amp; __ui, <span class="keywordtype">int</span> __nitem) {
<a name="l00202"></a>00202
<a name="l00203"></a>00203 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; __ui, __nitem, MPI_UNSIGNED, MPI_COMM_WORLD);
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="comment">/* Short int. */</span>
<a name="l00207"></a>00207 <span class="keywordtype">void</span> unpack (<span class="keywordtype">short</span> &amp; __sh, <span class="keywordtype">int</span> __nitem) {
<a name="l00208"></a>00208
<a name="l00209"></a>00209 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; __sh, __nitem, MPI_SHORT, MPI_COMM_WORLD);
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211
<a name="l00212"></a>00212 <span class="comment">/* Unsigned short */</span>
<a name="l00213"></a>00213 <span class="keywordtype">void</span> unpack (<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> &amp; __ush, <span class="keywordtype">int</span> __nitem) {
<a name="l00214"></a>00214
<a name="l00215"></a>00215 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; __ush, __nitem, MPI_UNSIGNED_SHORT, MPI_COMM_WORLD);
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217
<a name="l00218"></a>00218 <span class="comment">/* Long */</span>
<a name="l00219"></a>00219 <span class="keywordtype">void</span> unpack (<span class="keywordtype">long</span> &amp; __l, <span class="keywordtype">int</span> __nitem) {
<a name="l00220"></a>00220
<a name="l00221"></a>00221 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; __l, __nitem, MPI_LONG, MPI_COMM_WORLD);
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223
<a name="l00224"></a>00224 <span class="comment">/* Unsigned long */</span>
<a name="l00225"></a>00225 <span class="keywordtype">void</span> unpack (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> &amp; __ul, <span class="keywordtype">int</span> __nitem) {
<a name="l00226"></a>00226
<a name="l00227"></a>00227 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; __ul, __nitem, MPI_UNSIGNED_LONG, MPI_COMM_WORLD);
<a name="l00228"></a>00228 }
<a name="l00229"></a>00229
<a name="l00230"></a>00230 <span class="comment">/* String */</span>
<a name="l00231"></a>00231 <span class="keywordtype">void</span> unpack (<span class="keywordtype">char</span> * __str) {
<a name="l00232"></a>00232
<a name="l00233"></a>00233 <span class="keywordtype">int</span> len;
<a name="l00234"></a>00234 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, &amp; len, 1, MPI_INT, MPI_COMM_WORLD);
<a name="l00235"></a>00235 MPI_Unpack (mpi_buf, MPI_BUF_SIZE, &amp; pos_buf, __str, len, MPI_CHAR, MPI_COMM_WORLD);
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Jul 5 13:41:04 2007 for ParadisEO-PEO by&nbsp;
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