Hi All,<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I want to copy derived datatype &quot;newtype1&quot; to &quot;newtype2&quot;. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; This is for avoiding copying of each and every element of &quot;newtype1&quot; to &quot;newtype2&quot;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I tried the following conventions:<br>
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MPI_Type_size(newtype1, &amp;newtype1_size);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memcpy(&amp;newtype2, &amp;newtype1, newtype1_size);<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; As &quot;newtype1_size&quot; should be equal to &quot;newtype2_size&quot;, either of them can be used.<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; When I printed individual values of newtype2, it showed garbage/zero values. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Can anyone please throw some light on this? Or any other idea of copying one derived datatype to another can be explained.<br>
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Thanks...<br>--<br>Manoj Vaghela<br><br>