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353 lines
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<title>HIP: Heterogenous-computing Interface for Portability: Memory Management</title>
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<div id="projectname">HIP: Heterogenous-computing Interface for Portability
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<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Macros</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark"> </span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(10)"><span class="SelectionMark"> </span>Pages</a></div>
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<div class="title">Memory Management<div class="ingroups"><a class="el" href="group__API.html">HIP API</a></div></div> </div>
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</div><!--header-->
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:ga4c6fcfe80010069d2792780d00dcead2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Memory.html#ga4c6fcfe80010069d2792780d00dcead2">hipMalloc</a> (void **ptr, size_t size)</td></tr>
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<tr class="separator:ga4c6fcfe80010069d2792780d00dcead2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga66399e729223ff5b66ffc16297c0710e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Memory.html#ga66399e729223ff5b66ffc16297c0710e">hipMallocHost</a> (void **ptr, size_t size)</td></tr>
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<tr class="separator:ga66399e729223ff5b66ffc16297c0710e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga740d08da65cae1441ba32f8fedb863d1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Memory.html#ga740d08da65cae1441ba32f8fedb863d1">hipFree</a> (void *ptr)</td></tr>
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<tr class="separator:ga740d08da65cae1441ba32f8fedb863d1"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga28d7d92836116dfadeb62e416ee887d3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Memory.html#ga28d7d92836116dfadeb62e416ee887d3">hipFreeHost</a> (void *ptr)</td></tr>
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<tr class="separator:ga28d7d92836116dfadeb62e416ee887d3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gac1a055d288302edd641c6d7416858e1e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Memory.html#gac1a055d288302edd641c6d7416858e1e">hipMemcpy</a> (void *dst, const void *src, size_t sizeBytes, <a class="el" href="group__GlobalDefs.html#ga232e222db36b1fc672ba98054d036a18">hipMemcpyKind</a> kind)</td></tr>
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<tr class="separator:gac1a055d288302edd641c6d7416858e1e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga131ac5c1ba04e186112491cb9bf964bc"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga131ac5c1ba04e186112491cb9bf964bc"></a>
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<a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><b>hipMemcpyToSymbol</b> (const char *symbolName, const void *src, size_t sizeBytes, size_t offset, <a class="el" href="group__GlobalDefs.html#ga232e222db36b1fc672ba98054d036a18">hipMemcpyKind</a> kind)</td></tr>
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<tr class="separator:ga131ac5c1ba04e186112491cb9bf964bc"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga8ad5a0b13458917e1b9437732b21af54"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__Memory.html#ga8ad5a0b13458917e1b9437732b21af54">hipMemcpyAsync</a> (void *dst, const void *src, size_t sizeBytes, <a class="el" href="group__GlobalDefs.html#ga232e222db36b1fc672ba98054d036a18">hipMemcpyKind</a> kind, <a class="el" href="structihipStream__t.html">hipStream_t</a> stream=0)</td></tr>
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<tr class="separator:ga8ad5a0b13458917e1b9437732b21af54"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gac7441e74affcce4b8b69dba996c5ebc4"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gac7441e74affcce4b8b69dba996c5ebc4"></a>
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<a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><b>hipMemset</b> (void *dst, int value, size_t sizeBytes)</td></tr>
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<tr class="separator:gac7441e74affcce4b8b69dba996c5ebc4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaee4ed665ce0a60c661a809c175320a0c"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gaee4ed665ce0a60c661a809c175320a0c"></a>
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<a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><b>hipMemsetAsync</b> (void *dst, int value, size_t sizeBytes, <a class="el" href="structihipStream__t.html">hipStream_t</a>=0)</td></tr>
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<tr class="separator:gaee4ed665ce0a60c661a809c175320a0c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga311c3e246a21590de14478b8bd063be2"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga311c3e246a21590de14478b8bd063be2"></a>
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<a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> </td><td class="memItemRight" valign="bottom"><b>hipMemGetInfo</b> (size_t *free, size_t *total)</td></tr>
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<tr class="separator:ga311c3e246a21590de14478b8bd063be2"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<h2>----------------------------------------------------------------------------------------------— </h2>
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<p>The following CUDA APIs are not currently supported:</p>
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<ul>
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<li>cudaMalloc3D</li>
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<li>cudaMalloc3DArray</li>
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<li>TODO - more 2D, 3D, array APIs here. </li>
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</ul>
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<h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="ga740d08da65cae1441ba32f8fedb863d1"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> hipFree </td>
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<td>(</td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>ptr</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Free memory allocated by the hcc hip memory allocation API. This API performs an implicit <a class="el" href="group__Device.html#gaefdc2847fb1d6c3fb1354e827a191ebd" title="Blocks until the default device has completed all preceding requested tasks. ">hipDeviceSynchronize()</a> call.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">ptr</td><td>Pointer to memory to be freed </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Error code </dd></dl>
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</div>
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</div>
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<a class="anchor" id="ga28d7d92836116dfadeb62e416ee887d3"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> hipFreeHost </td>
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<td>(</td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>ptr</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Free memory allocated by the hcc hip host memory allocation API</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">ptr</td><td>Pointer to memory to be freed </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Error code </dd></dl>
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</div>
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</div>
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<a class="anchor" id="ga4c6fcfe80010069d2792780d00dcead2"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> hipMalloc </td>
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<td>(</td>
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<td class="paramtype">void ** </td>
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<td class="paramname"><em>ptr</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t </td>
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<td class="paramname"><em>size</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Allocate memory on the default accelerator</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[out]</td><td class="paramname">ptr</td><td>Pointer to the allocated memory </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">size</td><td>Requested memory size </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__GlobalDefs.html#ggadf5010f6e140a53ecbdf949e73e87594aadfbdb847b149723c684ebd764556063" title="Successful completion. ">hipSuccess</a> </dd></dl>
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</div>
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</div>
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<a class="anchor" id="ga66399e729223ff5b66ffc16297c0710e"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> hipMallocHost </td>
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<td>(</td>
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<td class="paramtype">void ** </td>
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<td class="paramname"><em>ptr</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t </td>
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<td class="paramname"><em>size</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>Allocate pinned host memory</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">ptr</td><td>Pointer to the allocated host pinned memory </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">size</td><td>Requested memory size </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Error code </dd></dl>
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</div>
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</div>
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<a class="anchor" id="gac1a055d288302edd641c6d7416858e1e"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> hipMemcpy </td>
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<td>(</td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>dst</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const void * </td>
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<td class="paramname"><em>src</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t </td>
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<td class="paramname"><em>sizeBytes</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="group__GlobalDefs.html#ga232e222db36b1fc672ba98054d036a18">hipMemcpyKind</a> </td>
|
||
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<td class="paramname"><em>kind</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Copy data from src to dst. It supports memory from host to device, device to host, device to device and host to host The src and dst must not overlap. If the</p>
|
||
|
|
<p>This function is host-synchronous for most inputs. It uses the default NULL stream and will synchronize with other blocking streams on the same device.</p>
|
||
|
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<dl class="params"><dt>Parameters</dt><dd>
|
||
|
|
<table class="params">
|
||
|
|
<tr><td class="paramdir"></td><td class="paramname"></td><td>being copy to </td></tr>
|
||
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|
<tr><td class="paramdir">[in]</td><td class="paramname">src</td><td>Data being copy from </td></tr>
|
||
|
|
<tr><td class="paramdir">[in]</td><td class="paramname">sizeBytes</td><td>Data size in bytes </td></tr>
|
||
|
|
<tr><td class="paramdir">[in]</td><td class="paramname">copyType</td><td>Memory copy type </td></tr>
|
||
|
|
</table>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
<dl class="section return"><dt>Returns</dt><dd>Error code </dd></dl>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="ga8ad5a0b13458917e1b9437732b21af54"></a>
|
||
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<div class="memitem">
|
||
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<div class="memproto">
|
||
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<table class="memname">
|
||
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<tr>
|
||
|
|
<td class="memname"><a class="el" href="group__GlobalDefs.html#gadf5010f6e140a53ecbdf949e73e87594">hipError_t</a> hipMemcpyAsync </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype">void * </td>
|
||
|
|
<td class="paramname"><em>dst</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype">const void * </td>
|
||
|
|
<td class="paramname"><em>src</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype">size_t </td>
|
||
|
|
<td class="paramname"><em>sizeBytes</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype"><a class="el" href="group__GlobalDefs.html#ga232e222db36b1fc672ba98054d036a18">hipMemcpyKind</a> </td>
|
||
|
|
<td class="paramname"><em>kind</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype"><a class="el" href="structihipStream__t.html">hipStream_t</a> </td>
|
||
|
|
<td class="paramname"><em>stream</em> = <code>0</code> </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td></td>
|
||
|
|
<td>)</td>
|
||
|
|
<td></td><td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div><div class="memdoc">
|
||
|
|
<p>Copy data from src to dst asynchronously. It supports memory from host to device, device to host, device to device and host to host.</p>
|
||
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
||
|
|
<table class="params">
|
||
|
|
<tr><td class="paramdir">[out]</td><td class="paramname">dst</td><td>Data being copy to </td></tr>
|
||
|
|
<tr><td class="paramdir">[in]</td><td class="paramname">src</td><td>Data being copy from </td></tr>
|
||
|
|
<tr><td class="paramdir">[in]</td><td class="paramname">sizeBytes</td><td>Data size in bytes </td></tr>
|
||
|
|
<tr><td class="paramdir">[in]</td><td class="paramname">accelerator_view</td><td>Accelerator view which the copy is being enqueued </td></tr>
|
||
|
|
</table>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
<dl class="section return"><dt>Returns</dt><dd>Error code </dd></dl>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</div><!-- contents -->
|
||
|
|
<!-- start footer part -->
|
||
|
|
<hr class="footer"/><address class="footer"><small>
|
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|
Generated on Mon Jan 25 2016 16:05:53 for HIP: Heterogenous-computing Interface for Portability by  <a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
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</small></address>
|
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</body>
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</html>
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