| <html> |
| <head><title>OpenACC™ data directive</title></head> |
| <body> |
| <h2>OpenACC™ data directive</h2> |
| <dl><dd>Delineates a block of code, identifying the scalars, arrays, and subarrays that will be available to an accelerator device during its execution and whether they will be copied into and out of device memory upon entry and exit.</dd></dl> |
| <table width="100%" border="0" cellspacing="5" cellpadding="3"><tr bgcolor="#eeeeee"> |
| <td align="left" valign="top"> |
| <tt><b><font color="#b46432">!$acc data</font></b></tt> <i>[clause [, clause ...]]</i><br> |
| <i>block</i><br> |
| <tt><b><font color="#b46432">!$acc end data</font></b></tt> |
| </td> |
| <td align="left" valign="top"> |
| <tt><b><font color="#931a68">#pragma </font>acc data</b></tt> <i>[clause [, clause ...]]</i><br> |
| <i>block</i> |
| </td> |
| </tr></table> |
| <p> |
| Supported clauses are |
| <tt> |
| <b>if</b>, |
| <b>copy</b>, |
| <b>copyin</b>, |
| <b>copyout</b>, |
| <b>create</b>, |
| <b>present</b>, |
| <b>present_or_copy</b>, |
| <b>present_or_copyin</b>, |
| <b>present_or_copyout</b>, |
| <b>present_or_create</b>, |
| <b>deviceptr</b>. |
| </tt> |
| </p> |
| <p>For more information, see Section |
| 2.5 |
| of <i>The OpenACC™ Application Programming Interface</i>, Version 1.0, |
| available from <a href="http://www.openacc-standard.org/">http://www.openacc-standard.org</a>.</p> |
| <br/> |
| <table width="100%" border="0"><tr> |
| <td align="right"><font color="#C0C0C0" size="1">OpenACC™ Application Programming Interface Version 1.0</font></td> |
| </tr></table> |
| </body> |
| </html> |
