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<title>NVIDIA CUDA Library: cuMemcpy3DAsync</title>
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<div class="navpath"><a class="el" href="group__CUDA__MEM.html">Memory Management</a>
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<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gc2322c70b38c2984536c90ed118bb1d7.html#gc2322c70b38c2984536c90ed118bb1d7">cuArray3DCreate</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gb58549f2f3f390b9e0e7c8f3acd53857.html#gb58549f2f3f390b9e0e7c8f3acd53857">cuArray3DGetDescriptor</a></td></tr>
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<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g982878affbbc023de84874faac838b0b.html#g982878affbbc023de84874faac838b0b">cuArrayDestroy</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g661fe823dbd37bf11f82a71bd4762acf.html#g661fe823dbd37bf11f82a71bd4762acf">cuArrayGetDescriptor</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g7e0bf2261bb1f21743818d3a287ce9cb.html#g7e0bf2261bb1f21743818d3a287ce9cb">cuDeviceGetByPCIBusId</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g85295e7d9745ab8f0aa80dd1e172acfc.html#g85295e7d9745ab8f0aa80dd1e172acfc">cuDeviceGetPCIBusId</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gd6f5d5bcf6376c6853b64635b0157b9e.html#gd6f5d5bcf6376c6853b64635b0157b9e">cuIpcCloseMemHandle</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gea02eadd12483de5305878b13288a86c.html#gea02eadd12483de5305878b13288a86c">cuIpcGetEventHandle</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g6f1b5be767b275f016523b2ac49ebec1.html#g6f1b5be767b275f016523b2ac49ebec1">cuIpcGetMemHandle</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gf1d525918b6c643b99ca8c8e42e36c2e.html#gf1d525918b6c643b99ca8c8e42e36c2e">cuIpcOpenEventHandle</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_ga8bd126fcff919a0c996b7640f197b79.html#ga8bd126fcff919a0c996b7640f197b79">cuIpcOpenMemHandle</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gb82d2a09844a58dd9e744dc31e8aa467.html#gb82d2a09844a58dd9e744dc31e8aa467">cuMemAlloc</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gdd8311286d2c2691605362c689bc64e0.html#gdd8311286d2c2691605362c689bc64e0">cuMemAllocHost</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gcbe9b033f6c4de80f63cc6e58ed9a45a.html#gcbe9b033f6c4de80f63cc6e58ed9a45a">cuMemAllocPitch</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g8d0ff510f26d4b87bd3a51e731e7f698.html#g8d0ff510f26d4b87bd3a51e731e7f698">cuMemcpy</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g27f885b30c34cc20a663a671dbf6fc27.html#g27f885b30c34cc20a663a671dbf6fc27">cuMemcpy2D</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g4acf155faeb969d9d21f5433d3d0f274.html#g4acf155faeb969d9d21f5433d3d0f274">cuMemcpy2DAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g2fa285d47fd7020e596bfeab3deb651b.html#g2fa285d47fd7020e596bfeab3deb651b">cuMemcpy2DUnaligned</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g4b5238975579f002c0199a3800ca44df.html#g4b5238975579f002c0199a3800ca44df">cuMemcpy3D</a></td></tr>
<tr><td class="navtab"><a class="qindexHL" href="group__CUDA__MEM_g79f4f3fde6ae0f529568d881d9e11987.html#g79f4f3fde6ae0f529568d881d9e11987">cuMemcpy3DAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g11466fd70cde9329a4e16eb1f258c433.html#g11466fd70cde9329a4e16eb1f258c433">cuMemcpy3DPeer</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gc4e4bfd9f627d3aa3695979e058f1bb8.html#gc4e4bfd9f627d3aa3695979e058f1bb8">cuMemcpy3DPeerAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g5f26aaf5582ade791e5688727a178d78.html#g5f26aaf5582ade791e5688727a178d78">cuMemcpyAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gf81b218c984a31436ec9e23a85fb604a.html#gf81b218c984a31436ec9e23a85fb604a">cuMemcpyAtoA</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g825b3f037f7f51382cae991bae8173fd.html#g825b3f037f7f51382cae991bae8173fd">cuMemcpyAtoD</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gf7ad1edb2539cccc352c6b8b76f657f4.html#gf7ad1edb2539cccc352c6b8b76f657f4">cuMemcpyAtoH</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g64cbd2e60436699aebdd0bdbf14d0f01.html#g64cbd2e60436699aebdd0bdbf14d0f01">cuMemcpyAtoHAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gad6827247af91600b56ce6e2ddb802e1.html#gad6827247af91600b56ce6e2ddb802e1">cuMemcpyDtoA</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g1725774abf8b51b91945f3336b778c8b.html#g1725774abf8b51b91945f3336b778c8b">cuMemcpyDtoD</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g39ea09ba682b8eccc9c3e0c04319b5c8.html#g39ea09ba682b8eccc9c3e0c04319b5c8">cuMemcpyDtoDAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g3480368ee0208a98f75019c9a8450893.html#g3480368ee0208a98f75019c9a8450893">cuMemcpyDtoH</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g56f30236c7c5247f8e061b59d3268362.html#g56f30236c7c5247f8e061b59d3268362">cuMemcpyDtoHAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g57d3d780d165ecc0e3b3ce08e141cd89.html#g57d3d780d165ecc0e3b3ce08e141cd89">cuMemcpyHtoA</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gb5c4863f64f132b4bc2661818b3fd188.html#gb5c4863f64f132b4bc2661818b3fd188">cuMemcpyHtoAAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g4d32266788c440b0220b1a9ba5795169.html#g4d32266788c440b0220b1a9ba5795169">cuMemcpyHtoD</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g1572263fe2597d7ba4f6964597a354a3.html#g1572263fe2597d7ba4f6964597a354a3">cuMemcpyHtoDAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_ge1f5c7771544fee150ada8853c7cbf4a.html#ge1f5c7771544fee150ada8853c7cbf4a">cuMemcpyPeer</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g82fcecb38018e64b98616a8ac30112f2.html#g82fcecb38018e64b98616a8ac30112f2">cuMemcpyPeerAsync</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g89b3f154e17cc89b6eea277dbdf5c93a.html#g89b3f154e17cc89b6eea277dbdf5c93a">cuMemFree</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g62e0fdbe181dab6b1c90fa1a51c7b92c.html#g62e0fdbe181dab6b1c90fa1a51c7b92c">cuMemFreeHost</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g64fee5711274a2a0573a789c94d8299b.html#g64fee5711274a2a0573a789c94d8299b">cuMemGetAddressRange</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g808f555540d0143a331cc42aa98835c0.html#g808f555540d0143a331cc42aa98835c0">cuMemGetInfo</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g572ca4011bfcb25034888a14d4e035b9.html#g572ca4011bfcb25034888a14d4e035b9">cuMemHostAlloc</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g57a39e5cba26af4d06be67fc77cc62f0.html#g57a39e5cba26af4d06be67fc77cc62f0">cuMemHostGetDevicePointer</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g42066246915fcb0400df2a17a851b35f.html#g42066246915fcb0400df2a17a851b35f">cuMemHostGetFlags</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gf0a9fe11544326dabd743b7aa6b54223.html#gf0a9fe11544326dabd743b7aa6b54223">cuMemHostRegister</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g63f450c8125359be87b7623b1c0b2a14.html#g63f450c8125359be87b7623b1c0b2a14">cuMemHostUnregister</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g7d805e610054392a4d11e8a8bf5eb35c.html#g7d805e610054392a4d11e8a8bf5eb35c">cuMemsetD16</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gf731438877dd8ec875e4c43d848c878c.html#gf731438877dd8ec875e4c43d848c878c">cuMemsetD16Async</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g7f561a15a66144fa9f6ab5350edc8a30.html#g7f561a15a66144fa9f6ab5350edc8a30">cuMemsetD2D16</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g64ee197befac3d74d9fefedcf6ef6b10.html#g64ee197befac3d74d9fefedcf6ef6b10">cuMemsetD2D16Async</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g74b359b2d026bfeb7c795b5038d07523.html#g74b359b2d026bfeb7c795b5038d07523">cuMemsetD2D32</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g8a78d3147ac93fac955052c815d9ea3c.html#g8a78d3147ac93fac955052c815d9ea3c">cuMemsetD2D32Async</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_ge88b13e646e2be6ba0e0475ef5205974.html#ge88b13e646e2be6ba0e0475ef5205974">cuMemsetD2D8</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g3f7b6924a3e49c3265b328f534102e97.html#g3f7b6924a3e49c3265b328f534102e97">cuMemsetD2D8Async</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g983e8d8759acd1b64326317481fbf132.html#g983e8d8759acd1b64326317481fbf132">cuMemsetD32</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g58229da5d30f1c0cdf667b320ec2c0f5.html#g58229da5d30f1c0cdf667b320ec2c0f5">cuMemsetD32Async</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_g6e582bf866e9e2fb014297bfaf354d7b.html#g6e582bf866e9e2fb014297bfaf354d7b">cuMemsetD8</a></td></tr>
<tr><td class="navtab"><a class="qindex" href="group__CUDA__MEM_gaef08a7ccd61112f94e82f2b30d43627.html#gaef08a7ccd61112f94e82f2b30d43627">cuMemsetD8Async</a></td></tr>
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<a class="anchor" name="g79f4f3fde6ae0f529568d881d9e11987"></a><!-- doxytag: member="cuda.h::cuMemcpy3DAsync" ref="g79f4f3fde6ae0f529568d881d9e11987" args="(const CUDA_MEMCPY3D *pCopy, CUstream hStream)" -->
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<td class="memname"><a class="el" href="group__CUDA__TYPES_g09da14df1a751dcbfeccb9cf0073d64c.html#g09da14df1a751dcbfeccb9cf0073d64c">CUresult</a> cuMemcpy3DAsync </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structCUDA__MEMCPY3D__st.html">CUDA_MEMCPY3D</a> * </td>
<td class="paramname"> <em>pCopy</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__CUDA__TYPES_gb946c7f02e09efd788a204718015d88a.html#gb946c7f02e09efd788a204718015d88a">CUstream</a> </td>
<td class="paramname"> <em>hStream</em></td><td> </td>
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<p>
Perform a 3D memory copy according to the parameters specified in <code>pCopy</code>. The <a class="el" href="group__CUDA__TYPES_gde7782de4c8148acabdc70c6f078efbc.html#gde7782de4c8148acabdc70c6f078efbc">CUDA_MEMCPY3D</a> structure is defined as:<p>
<div class="fragment"><pre class="fragment"> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structCUDA__MEMCPY3D__st.html">CUDA_MEMCPY3D_st</a> {
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> srcXInBytes, <a class="code" href="structCUDA__MEMCPY3D__st_4e6306c59b4a34c36d91530e9e5d4248.html#4e6306c59b4a34c36d91530e9e5d4248">srcY</a>, <a class="code" href="structCUDA__MEMCPY3D__st_2ec7d2db4a3c679771f8e75d9f5deb52.html#2ec7d2db4a3c679771f8e75d9f5deb52">srcZ</a>;
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structCUDA__MEMCPY3D__st_5cc0830e8f653ba4121fa009f9abf445.html#5cc0830e8f653ba4121fa009f9abf445">srcLOD</a>;
<a class="code" href="group__CUDA__TYPES_g9e45c622a47315753c4725c101148a81.html#g9e45c622a47315753c4725c101148a81">CUmemorytype</a> <a class="code" href="structCUDA__MEMCPY3D__st_693af7438a3b485221e1f20cee82cd84.html#693af7438a3b485221e1f20cee82cd84">srcMemoryType</a>;
<span class="keyword">const</span> <span class="keywordtype">void</span> *<a class="code" href="structCUDA__MEMCPY3D__st_7f02d9c78f476996e75a9f53f6b21d13.html#7f02d9c78f476996e75a9f53f6b21d13">srcHost</a>;
<a class="code" href="group__CUDA__TYPES_g5e264ce2ad6a38761e7e04921ef771de.html#g5e264ce2ad6a38761e7e04921ef771de">CUdeviceptr</a> <a class="code" href="structCUDA__MEMCPY3D__st_53d3d8cb6341e8f58fe89aa7ab54c795.html#53d3d8cb6341e8f58fe89aa7ab54c795">srcDevice</a>;
<a class="code" href="group__CUDA__TYPES_gd550651524a56766b60f10f0e7628042.html#gd550651524a56766b60f10f0e7628042">CUarray</a> <a class="code" href="structCUDA__MEMCPY3D__st_6d4c1dc48609ed769f4d5463f4cfd6da.html#6d4c1dc48609ed769f4d5463f4cfd6da">srcArray</a>;
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structCUDA__MEMCPY3D__st_cdbc273d43e636b81e2af2a4bb619913.html#cdbc273d43e636b81e2af2a4bb619913">srcPitch</a>; <span class="comment">// ignored when src is array</span>
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structCUDA__MEMCPY3D__st_d62a4ff7aacf6255eace013fe3ebcf9a.html#d62a4ff7aacf6255eace013fe3ebcf9a">srcHeight</a>; <span class="comment">// ignored when src is array; may be 0 if Depth==1</span>
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> dstXInBytes, <a class="code" href="structCUDA__MEMCPY3D__st_4815e247afac858b4e8a1b851555e9eb.html#4815e247afac858b4e8a1b851555e9eb">dstY</a>, <a class="code" href="structCUDA__MEMCPY3D__st_ad932e4f80d3db31fe24a998794b250a.html#ad932e4f80d3db31fe24a998794b250a">dstZ</a>;
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structCUDA__MEMCPY3D__st_8821268af27da134c04f578fb32336b9.html#8821268af27da134c04f578fb32336b9">dstLOD</a>;
<a class="code" href="group__CUDA__TYPES_g9e45c622a47315753c4725c101148a81.html#g9e45c622a47315753c4725c101148a81">CUmemorytype</a> <a class="code" href="structCUDA__MEMCPY3D__st_67228a161680f3ab38046076e06209e3.html#67228a161680f3ab38046076e06209e3">dstMemoryType</a>;
<span class="keywordtype">void</span> *<a class="code" href="structCUDA__MEMCPY3D__st_dc0df50aeaaf2acf52b0f9228d89641c.html#dc0df50aeaaf2acf52b0f9228d89641c">dstHost</a>;
<a class="code" href="group__CUDA__TYPES_g5e264ce2ad6a38761e7e04921ef771de.html#g5e264ce2ad6a38761e7e04921ef771de">CUdeviceptr</a> <a class="code" href="structCUDA__MEMCPY3D__st_050a11edaa919df89903d5b0c6cb17e6.html#050a11edaa919df89903d5b0c6cb17e6">dstDevice</a>;
<a class="code" href="group__CUDA__TYPES_gd550651524a56766b60f10f0e7628042.html#gd550651524a56766b60f10f0e7628042">CUarray</a> <a class="code" href="structCUDA__MEMCPY3D__st_e95f7d57bfc7251b01de2fe32d3ea116.html#e95f7d57bfc7251b01de2fe32d3ea116">dstArray</a>;
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structCUDA__MEMCPY3D__st_fdaa5cbe498302734f9fd44b80a04fba.html#fdaa5cbe498302734f9fd44b80a04fba">dstPitch</a>; <span class="comment">// ignored when dst is array</span>
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structCUDA__MEMCPY3D__st_b3257d87b2a20782cc2c6ea323d4688d.html#b3257d87b2a20782cc2c6ea323d4688d">dstHeight</a>; <span class="comment">// ignored when dst is array; may be 0 if Depth==1</span>
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structCUDA__MEMCPY3D__st_3f3b53b0597c5afc13c9a3147271ca30.html#3f3b53b0597c5afc13c9a3147271ca30">WidthInBytes</a>;
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structCUDA__MEMCPY3D__st_5c4eff50c50d4e457ff51f137c1a7c69.html#5c4eff50c50d4e457ff51f137c1a7c69">Height</a>;
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structCUDA__MEMCPY3D__st_2adc0e58f9dd5f26f8e12b570ff41fe2.html#2adc0e58f9dd5f26f8e12b570ff41fe2">Depth</a>;
} <a class="code" href="structCUDA__MEMCPY3D__st.html">CUDA_MEMCPY3D</a>;
</pre></div> where:<ul>
<li>srcMemoryType and dstMemoryType specify the type of memory of the source and destination, respectively; <a class="el" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#g401176319b8c53648d525e8859437790">CUmemorytype_enum</a> is defined as:</li></ul>
<p>
<div class="fragment"><pre class="fragment"> <span class="keyword">typedef</span> <span class="keyword">enum</span> <a class="code" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#g401176319b8c53648d525e8859437790">CUmemorytype_enum</a> {
<a class="code" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e88594377907f98a88f26eec8490bfc180c5a73e101">CU_MEMORYTYPE_HOST</a> = 0x01,
<a class="code" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e8859437790ec7e15ba4b111a26adb3487023707299">CU_MEMORYTYPE_DEVICE</a> = 0x02,
<a class="code" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e8859437790d7f97cd13a156651767607456fe25b66">CU_MEMORYTYPE_ARRAY</a> = 0x03,
<a class="code" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e88594377907a47ca2de6db5cf82084ad80ce66aa71">CU_MEMORYTYPE_UNIFIED</a> = 0x04
} <a class="code" href="group__CUDA__TYPES_g9e45c622a47315753c4725c101148a81.html#g9e45c622a47315753c4725c101148a81">CUmemorytype</a>;
</pre></div><p>
<dl class="user" compact><dt><b></b></dt><dd>If srcMemoryType is <a class="el" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e88594377907a47ca2de6db5cf82084ad80ce66aa71">CU_MEMORYTYPE_UNIFIED</a>, srcDevice and srcPitch specify the (unified virtual address space) base address of the source data and the bytes per row to apply. srcArray is ignored. This value may be used only if unified addressing is supported in the calling context.</dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>If srcMemoryType is <a class="el" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e88594377907f98a88f26eec8490bfc180c5a73e101">CU_MEMORYTYPE_HOST</a>, srcHost, srcPitch and srcHeight specify the (host) base address of the source data, the bytes per row, and the height of each 2D slice of the 3D array. srcArray is ignored.</dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>If srcMemoryType is <a class="el" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e8859437790ec7e15ba4b111a26adb3487023707299">CU_MEMORYTYPE_DEVICE</a>, srcDevice, srcPitch and srcHeight specify the (device) base address of the source data, the bytes per row, and the height of each 2D slice of the 3D array. srcArray is ignored.</dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>If srcMemoryType is <a class="el" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e8859437790d7f97cd13a156651767607456fe25b66">CU_MEMORYTYPE_ARRAY</a>, srcArray specifies the handle of the source data. srcHost, srcDevice, srcPitch and srcHeight are ignored.</dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>If dstMemoryType is <a class="el" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e88594377907a47ca2de6db5cf82084ad80ce66aa71">CU_MEMORYTYPE_UNIFIED</a>, dstDevice and dstPitch specify the (unified virtual address space) base address of the source data and the bytes per row to apply. dstArray is ignored. This value may be used only if unified addressing is supported in the calling context.</dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>If dstMemoryType is <a class="el" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e88594377907f98a88f26eec8490bfc180c5a73e101">CU_MEMORYTYPE_HOST</a>, dstHost and dstPitch specify the (host) base address of the destination data, the bytes per row, and the height of each 2D slice of the 3D array. dstArray is ignored.</dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>If dstMemoryType is <a class="el" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e8859437790ec7e15ba4b111a26adb3487023707299">CU_MEMORYTYPE_DEVICE</a>, dstDevice and dstPitch specify the (device) base address of the destination data, the bytes per row, and the height of each 2D slice of the 3D array. dstArray is ignored.</dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>If dstMemoryType is <a class="el" href="group__CUDA__TYPES_g401176319b8c53648d525e8859437790.html#gg401176319b8c53648d525e8859437790d7f97cd13a156651767607456fe25b66">CU_MEMORYTYPE_ARRAY</a>, dstArray specifies the handle of the destination data. dstHost, dstDevice, dstPitch and dstHeight are ignored.</dd></dl>
<ul>
<li>srcXInBytes, srcY and srcZ specify the base address of the source data for the copy.</li></ul>
<p>
<dl class="user" compact><dt><b></b></dt><dd>For host pointers, the starting address is <div class="fragment"><pre class="fragment"> <span class="keywordtype">void</span>* Start = (<span class="keywordtype">void</span>*)((<span class="keywordtype">char</span>*)srcHost+(srcZ*srcHeight+srcY)*srcPitch + srcXInBytes);
</pre></div></dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>For device pointers, the starting address is <div class="fragment"><pre class="fragment"> <a class="code" href="group__CUDA__TYPES_g5e264ce2ad6a38761e7e04921ef771de.html#g5e264ce2ad6a38761e7e04921ef771de">CUdeviceptr</a> Start = srcDevice+(srcZ*srcHeight+srcY)*srcPitch+srcXInBytes;
</pre></div></dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>For CUDA arrays, srcXInBytes must be evenly divisible by the array element size.</dd></dl>
<ul>
<li>dstXInBytes, dstY and dstZ specify the base address of the destination data for the copy.</li></ul>
<p>
<dl class="user" compact><dt><b></b></dt><dd>For host pointers, the base address is <div class="fragment"><pre class="fragment"> <span class="keywordtype">void</span>* dstStart = (<span class="keywordtype">void</span>*)((<span class="keywordtype">char</span>*)dstHost+(dstZ*dstHeight+dstY)*dstPitch + dstXInBytes);
</pre></div></dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>For device pointers, the starting address is <div class="fragment"><pre class="fragment"> <a class="code" href="group__CUDA__TYPES_g5e264ce2ad6a38761e7e04921ef771de.html#g5e264ce2ad6a38761e7e04921ef771de">CUdeviceptr</a> dstStart = dstDevice+(dstZ*dstHeight+dstY)*dstPitch+dstXInBytes;
</pre></div></dd></dl>
<dl class="user" compact><dt><b></b></dt><dd>For CUDA arrays, dstXInBytes must be evenly divisible by the array element size.</dd></dl>
<ul>
<li>WidthInBytes, Height and Depth specify the width (in bytes), height and depth of the 3D copy being performed.</li><li>If specified, srcPitch must be greater than or equal to WidthInBytes + srcXInBytes, and dstPitch must be greater than or equal to WidthInBytes + dstXInBytes.</li><li>If specified, srcHeight must be greater than or equal to Height + srcY, and dstHeight must be greater than or equal to Height + dstY.</li></ul>
<p>
<dl class="user" compact><dt><b></b></dt><dd><a class="el" href="group__CUDA__MEM_g4b5238975579f002c0199a3800ca44df.html#g4b5238975579f002c0199a3800ca44df" title="Copies memory for 3D arrays.">cuMemcpy3D()</a> returns an error if any pitch is greater than the maximum allowed (<a class="el" href="group__CUDA__TYPES_g3b9f561d2a42733dde99b2cedcaa413a.html#gg3b9f561d2a42733dde99b2cedcaa413ac1625acc7a2db635bc1efae34030598d">CU_DEVICE_ATTRIBUTE_MAX_PITCH</a>).</dd></dl>
<a class="el" href="group__CUDA__MEM_g79f4f3fde6ae0f529568d881d9e11987.html#g79f4f3fde6ae0f529568d881d9e11987" title="Copies memory for 3D arrays.">cuMemcpy3DAsync()</a> is asynchronous and can optionally be associated to a stream by passing a non-zero <code>hStream</code> argument. It only works on page-locked host memory and returns an error if a pointer to pageable memory is passed as input.<p>
The srcLOD and dstLOD members of the <a class="el" href="group__CUDA__TYPES_gde7782de4c8148acabdc70c6f078efbc.html#gde7782de4c8148acabdc70c6f078efbc">CUDA_MEMCPY3D</a> structure must be set to 0.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>pCopy</em> </td><td>- Parameters for the memory copy </td></tr>
<tr><td valign="top"></td><td valign="top"><em>hStream</em> </td><td>- Stream identifier</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaaa0eed720f8a87cd1c5fd1c453bc7a03d">CUDA_SUCCESS</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaaacf52f132faf29b473cdda6061f0f44a">CUDA_ERROR_DEINITIALIZED</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaa8feb999f0af99b4a25ab26b3866f4df8">CUDA_ERROR_NOT_INITIALIZED</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaaa484e9af32c1e9893ff21f0e0191a12d">CUDA_ERROR_INVALID_CONTEXT</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaa90696c86fcee1f536a1ec7d25867feeb">CUDA_ERROR_INVALID_VALUE</a> </dd></dl>
<dl class="note" compact><dt><b>Note:</b></dt><dd>Note that this function may also return error codes from previous, asynchronous launches.</dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="group__CUDA__MEM_gc2322c70b38c2984536c90ed118bb1d7.html#gc2322c70b38c2984536c90ed118bb1d7" title="Creates a 3D CUDA array.">cuArray3DCreate</a>, <a class="el" href="group__CUDA__MEM_gb58549f2f3f390b9e0e7c8f3acd53857.html#gb58549f2f3f390b9e0e7c8f3acd53857" title="Get a 3D CUDA array descriptor.">cuArray3DGetDescriptor</a>, <a class="el" href="group__CUDA__MEM_g4192ff387a81c3bd5ed8c391ed62ca24.html#g4192ff387a81c3bd5ed8c391ed62ca24" title="Creates a 1D or 2D CUDA array.">cuArrayCreate</a>, <a class="el" href="group__CUDA__MEM_g982878affbbc023de84874faac838b0b.html#g982878affbbc023de84874faac838b0b" title="Destroys a CUDA array.">cuArrayDestroy</a>, <a class="el" href="group__CUDA__MEM_g661fe823dbd37bf11f82a71bd4762acf.html#g661fe823dbd37bf11f82a71bd4762acf" title="Get a 1D or 2D CUDA array descriptor.">cuArrayGetDescriptor</a>, <a class="el" href="group__CUDA__MEM_gb82d2a09844a58dd9e744dc31e8aa467.html#gb82d2a09844a58dd9e744dc31e8aa467" title="Allocates device memory.">cuMemAlloc</a>, <a class="el" href="group__CUDA__MEM_gdd8311286d2c2691605362c689bc64e0.html#gdd8311286d2c2691605362c689bc64e0" title="Allocates page-locked host memory.">cuMemAllocHost</a>, <a class="el" href="group__CUDA__MEM_gcbe9b033f6c4de80f63cc6e58ed9a45a.html#gcbe9b033f6c4de80f63cc6e58ed9a45a" title="Allocates pitched device memory.">cuMemAllocPitch</a>, <a class="el" href="group__CUDA__MEM_g27f885b30c34cc20a663a671dbf6fc27.html#g27f885b30c34cc20a663a671dbf6fc27" title="Copies memory for 2D arrays.">cuMemcpy2D</a>, <a class="el" href="group__CUDA__MEM_g4acf155faeb969d9d21f5433d3d0f274.html#g4acf155faeb969d9d21f5433d3d0f274" title="Copies memory for 2D arrays.">cuMemcpy2DAsync</a>, <a class="el" href="group__CUDA__MEM_g2fa285d47fd7020e596bfeab3deb651b.html#g2fa285d47fd7020e596bfeab3deb651b" title="Copies memory for 2D arrays.">cuMemcpy2DUnaligned</a>, <a class="el" href="group__CUDA__MEM_g4b5238975579f002c0199a3800ca44df.html#g4b5238975579f002c0199a3800ca44df" title="Copies memory for 3D arrays.">cuMemcpy3D</a>, <a class="el" href="group__CUDA__MEM_gf81b218c984a31436ec9e23a85fb604a.html#gf81b218c984a31436ec9e23a85fb604a" title="Copies memory from Array to Array.">cuMemcpyAtoA</a>, <a class="el" href="group__CUDA__MEM_g825b3f037f7f51382cae991bae8173fd.html#g825b3f037f7f51382cae991bae8173fd" title="Copies memory from Array to Device.">cuMemcpyAtoD</a>, <a class="el" href="group__CUDA__MEM_gf7ad1edb2539cccc352c6b8b76f657f4.html#gf7ad1edb2539cccc352c6b8b76f657f4" title="Copies memory from Array to Host.">cuMemcpyAtoH</a>, <a class="el" href="group__CUDA__MEM_g64cbd2e60436699aebdd0bdbf14d0f01.html#g64cbd2e60436699aebdd0bdbf14d0f01" title="Copies memory from Array to Host.">cuMemcpyAtoHAsync</a>, <a class="el" href="group__CUDA__MEM_gad6827247af91600b56ce6e2ddb802e1.html#gad6827247af91600b56ce6e2ddb802e1" title="Copies memory from Device to Array.">cuMemcpyDtoA</a>, <a class="el" href="group__CUDA__MEM_g1725774abf8b51b91945f3336b778c8b.html#g1725774abf8b51b91945f3336b778c8b" title="Copies memory from Device to Device.">cuMemcpyDtoD</a>, <a class="el" href="group__CUDA__MEM_g39ea09ba682b8eccc9c3e0c04319b5c8.html#g39ea09ba682b8eccc9c3e0c04319b5c8" title="Copies memory from Device to Device.">cuMemcpyDtoDAsync</a>, <a class="el" href="group__CUDA__MEM_g3480368ee0208a98f75019c9a8450893.html#g3480368ee0208a98f75019c9a8450893" title="Copies memory from Device to Host.">cuMemcpyDtoH</a>, <a class="el" href="group__CUDA__MEM_g56f30236c7c5247f8e061b59d3268362.html#g56f30236c7c5247f8e061b59d3268362" title="Copies memory from Device to Host.">cuMemcpyDtoHAsync</a>, <a class="el" href="group__CUDA__MEM_g57d3d780d165ecc0e3b3ce08e141cd89.html#g57d3d780d165ecc0e3b3ce08e141cd89" title="Copies memory from Host to Array.">cuMemcpyHtoA</a>, <a class="el" href="group__CUDA__MEM_gb5c4863f64f132b4bc2661818b3fd188.html#gb5c4863f64f132b4bc2661818b3fd188" title="Copies memory from Host to Array.">cuMemcpyHtoAAsync</a>, <a class="el" href="group__CUDA__MEM_g4d32266788c440b0220b1a9ba5795169.html#g4d32266788c440b0220b1a9ba5795169" title="Copies memory from Host to Device.">cuMemcpyHtoD</a>, <a class="el" href="group__CUDA__MEM_g1572263fe2597d7ba4f6964597a354a3.html#g1572263fe2597d7ba4f6964597a354a3" title="Copies memory from Host to Device.">cuMemcpyHtoDAsync</a>, <a class="el" href="group__CUDA__MEM_g89b3f154e17cc89b6eea277dbdf5c93a.html#g89b3f154e17cc89b6eea277dbdf5c93a" title="Frees device memory.">cuMemFree</a>, <a class="el" href="group__CUDA__MEM_g62e0fdbe181dab6b1c90fa1a51c7b92c.html#g62e0fdbe181dab6b1c90fa1a51c7b92c" title="Frees page-locked host memory.">cuMemFreeHost</a>, <a class="el" href="group__CUDA__MEM_g64fee5711274a2a0573a789c94d8299b.html#g64fee5711274a2a0573a789c94d8299b" title="Get information on memory allocations.">cuMemGetAddressRange</a>, <a class="el" href="group__CUDA__MEM_g808f555540d0143a331cc42aa98835c0.html#g808f555540d0143a331cc42aa98835c0" title="Gets free and total memory.">cuMemGetInfo</a>, <a class="el" href="group__CUDA__MEM_g572ca4011bfcb25034888a14d4e035b9.html#g572ca4011bfcb25034888a14d4e035b9" title="Allocates page-locked host memory.">cuMemHostAlloc</a>, <a class="el" href="group__CUDA__MEM_g57a39e5cba26af4d06be67fc77cc62f0.html#g57a39e5cba26af4d06be67fc77cc62f0" title="Passes back device pointer of mapped pinned memory.">cuMemHostGetDevicePointer</a>, <a class="el" href="group__CUDA__MEM_ge88b13e646e2be6ba0e0475ef5205974.html#ge88b13e646e2be6ba0e0475ef5205974" title="Initializes device memory.">cuMemsetD2D8</a>, <a class="el" href="group__CUDA__MEM_g3f7b6924a3e49c3265b328f534102e97.html#g3f7b6924a3e49c3265b328f534102e97" title="Sets device memory.">cuMemsetD2D8Async</a>, <a class="el" href="group__CUDA__MEM_g7f561a15a66144fa9f6ab5350edc8a30.html#g7f561a15a66144fa9f6ab5350edc8a30" title="Initializes device memory.">cuMemsetD2D16</a>, <a class="el" href="group__CUDA__MEM_g64ee197befac3d74d9fefedcf6ef6b10.html#g64ee197befac3d74d9fefedcf6ef6b10" title="Sets device memory.">cuMemsetD2D16Async</a>, <a class="el" href="group__CUDA__MEM_g74b359b2d026bfeb7c795b5038d07523.html#g74b359b2d026bfeb7c795b5038d07523" title="Initializes device memory.">cuMemsetD2D32</a>, <a class="el" href="group__CUDA__MEM_g8a78d3147ac93fac955052c815d9ea3c.html#g8a78d3147ac93fac955052c815d9ea3c" title="Sets device memory.">cuMemsetD2D32Async</a>, <a class="el" href="group__CUDA__MEM_g6e582bf866e9e2fb014297bfaf354d7b.html#g6e582bf866e9e2fb014297bfaf354d7b" title="Initializes device memory.">cuMemsetD8</a>, <a class="el" href="group__CUDA__MEM_gaef08a7ccd61112f94e82f2b30d43627.html#gaef08a7ccd61112f94e82f2b30d43627" title="Sets device memory.">cuMemsetD8Async</a>, <a class="el" href="group__CUDA__MEM_g7d805e610054392a4d11e8a8bf5eb35c.html#g7d805e610054392a4d11e8a8bf5eb35c" title="Initializes device memory.">cuMemsetD16</a>, <a class="el" href="group__CUDA__MEM_gf731438877dd8ec875e4c43d848c878c.html#gf731438877dd8ec875e4c43d848c878c" title="Sets device memory.">cuMemsetD16Async</a>, <a class="el" href="group__CUDA__MEM_g983e8d8759acd1b64326317481fbf132.html#g983e8d8759acd1b64326317481fbf132" title="Initializes device memory.">cuMemsetD32</a>, <a class="el" href="group__CUDA__MEM_g58229da5d30f1c0cdf667b320ec2c0f5.html#g58229da5d30f1c0cdf667b320ec2c0f5" title="Sets device memory.">cuMemsetD32Async</a> </dd></dl>
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