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| <section id="pyarrow-cuda-cudabuffer"> |
| <h1>pyarrow.cuda.CudaBuffer<a class="headerlink" href="#pyarrow-cuda-cudabuffer" title="Permalink to this heading">#</a></h1> |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">pyarrow.cuda.</span></span><span class="sig-name descname"><span class="pre">CudaBuffer</span></span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer" title="Permalink to this definition">#</a></dt> |
| <dd><p>Bases: <a class="reference internal" href="pyarrow.Buffer.html#pyarrow.Buffer" title="pyarrow.lib.Buffer"><code class="xref py py-class docutils literal notranslate"><span class="pre">Buffer</span></code></a></p> |
| <p>An Arrow buffer with data located in a GPU device.</p> |
| <p>To create a CudaBuffer instance, use Context.device_buffer().</p> |
| <p>The memory allocated in a CudaBuffer is freed when the buffer object |
| is deleted.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.__init__"> |
| <span class="sig-name descname"><span class="pre">__init__</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.__init__" title="Permalink to this definition">#</a></dt> |
| <dd></dd></dl> |
| |
| <p class="rubric">Methods</p> |
| <table class="autosummary longtable table autosummary"> |
| <tbody> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.__init__" title="pyarrow.cuda.CudaBuffer.__init__"><code class="xref py py-obj docutils literal notranslate"><span class="pre">__init__</span></code></a>(*args, **kwargs)</p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.copy_from_device" title="pyarrow.cuda.CudaBuffer.copy_from_device"><code class="xref py py-obj docutils literal notranslate"><span class="pre">copy_from_device</span></code></a>(self, buf, ...)</p></td> |
| <td><p>Copy data from device to device.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.copy_from_host" title="pyarrow.cuda.CudaBuffer.copy_from_host"><code class="xref py py-obj docutils literal notranslate"><span class="pre">copy_from_host</span></code></a>(self, data, ...)</p></td> |
| <td><p>Copy data from host to device.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.copy_to_host" title="pyarrow.cuda.CudaBuffer.copy_to_host"><code class="xref py py-obj docutils literal notranslate"><span class="pre">copy_to_host</span></code></a>(self, int64_t position=0, ...)</p></td> |
| <td><p>Copy memory from GPU device to CPU host</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.equals" title="pyarrow.cuda.CudaBuffer.equals"><code class="xref py py-obj docutils literal notranslate"><span class="pre">equals</span></code></a>(self, Buffer other)</p></td> |
| <td><p>Determine if two buffers contain exactly the same data.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.export_for_ipc" title="pyarrow.cuda.CudaBuffer.export_for_ipc"><code class="xref py py-obj docutils literal notranslate"><span class="pre">export_for_ipc</span></code></a>(self)</p></td> |
| <td><p>Expose this device buffer as IPC memory which can be used in other processes.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.from_buffer" title="pyarrow.cuda.CudaBuffer.from_buffer"><code class="xref py py-obj docutils literal notranslate"><span class="pre">from_buffer</span></code></a>(buf)</p></td> |
| <td><p>Convert back generic buffer into CudaBuffer</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.from_numba" title="pyarrow.cuda.CudaBuffer.from_numba"><code class="xref py py-obj docutils literal notranslate"><span class="pre">from_numba</span></code></a>(mem)</p></td> |
| <td><p>Create a CudaBuffer view from numba MemoryPointer instance.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.hex" title="pyarrow.cuda.CudaBuffer.hex"><code class="xref py py-obj docutils literal notranslate"><span class="pre">hex</span></code></a>(self)</p></td> |
| <td><p>Compute hexadecimal representation of the buffer.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.slice" title="pyarrow.cuda.CudaBuffer.slice"><code class="xref py py-obj docutils literal notranslate"><span class="pre">slice</span></code></a>(self[, offset, length])</p></td> |
| <td><p>Return slice of device buffer</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.to_numba" title="pyarrow.cuda.CudaBuffer.to_numba"><code class="xref py py-obj docutils literal notranslate"><span class="pre">to_numba</span></code></a>(self)</p></td> |
| <td><p>Return numba memory pointer of CudaBuffer instance.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.to_pybytes" title="pyarrow.cuda.CudaBuffer.to_pybytes"><code class="xref py py-obj docutils literal notranslate"><span class="pre">to_pybytes</span></code></a>(self)</p></td> |
| <td><p>Return device buffer content as Python bytes.</p></td> |
| </tr> |
| </tbody> |
| </table> |
| <p class="rubric">Attributes</p> |
| <table class="autosummary longtable table autosummary"> |
| <tbody> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.address" title="pyarrow.cuda.CudaBuffer.address"><code class="xref py py-obj docutils literal notranslate"><span class="pre">address</span></code></a></p></td> |
| <td><p>The buffer's address, as an integer.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.context" title="pyarrow.cuda.CudaBuffer.context"><code class="xref py py-obj docutils literal notranslate"><span class="pre">context</span></code></a></p></td> |
| <td><p>Returns the CUDA driver context of this buffer.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.is_cpu" title="pyarrow.cuda.CudaBuffer.is_cpu"><code class="xref py py-obj docutils literal notranslate"><span class="pre">is_cpu</span></code></a></p></td> |
| <td><p>Whether the buffer is CPU-accessible.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.is_mutable" title="pyarrow.cuda.CudaBuffer.is_mutable"><code class="xref py py-obj docutils literal notranslate"><span class="pre">is_mutable</span></code></a></p></td> |
| <td><p>Whether the buffer is mutable.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.parent" title="pyarrow.cuda.CudaBuffer.parent"><code class="xref py py-obj docutils literal notranslate"><span class="pre">parent</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.cuda.CudaBuffer.size" title="pyarrow.cuda.CudaBuffer.size"><code class="xref py py-obj docutils literal notranslate"><span class="pre">size</span></code></a></p></td> |
| <td><p>The buffer size in bytes.</p></td> |
| </tr> |
| </tbody> |
| </table> |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.address"> |
| <span class="sig-name descname"><span class="pre">address</span></span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.address" title="Permalink to this definition">#</a></dt> |
| <dd><p>The buffer’s address, as an integer.</p> |
| <p>The returned address may point to CPU or device memory. |
| Use <cite>is_cpu()</cite> to disambiguate.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.context"> |
| <span class="sig-name descname"><span class="pre">context</span></span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.context" title="Permalink to this definition">#</a></dt> |
| <dd><p>Returns the CUDA driver context of this buffer.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.copy_from_device"> |
| <span class="sig-name descname"><span class="pre">copy_from_device</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">buf</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">int64_t</span> <span class="pre">position=0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">int64_t</span> <span class="pre">nbytes=-1</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.copy_from_device" title="Permalink to this definition">#</a></dt> |
| <dd><p>Copy data from device to device.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>buf</strong><span class="classifier"><a class="reference internal" href="#pyarrow.cuda.CudaBuffer" title="pyarrow.cuda.CudaBuffer"><code class="xref py py-obj docutils literal notranslate"><span class="pre">CudaBuffer</span></code></a></span></dt><dd><p>Specify source device buffer.</p> |
| </dd> |
| <dt><strong>position</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>Specify the starting position of the copy in device buffer. |
| Default: 0.</p> |
| </dd> |
| <dt><strong>nbytes</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>Specify the number of bytes to copy. Default: -1 (all from |
| source until device buffer, starting from position, is full)</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>nbytes</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>Number of bytes copied.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.copy_from_host"> |
| <span class="sig-name descname"><span class="pre">copy_from_host</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">data</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">int64_t</span> <span class="pre">position=0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">int64_t</span> <span class="pre">nbytes=-1</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.copy_from_host" title="Permalink to this definition">#</a></dt> |
| <dd><p>Copy data from host to device.</p> |
| <p>The device buffer must be pre-allocated.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>data</strong><span class="classifier">{<code class="xref py py-obj docutils literal notranslate"><span class="pre">Buffer</span></code>, <a class="reference internal" href="pyarrow.array.html#pyarrow.array" title="pyarrow.array"><code class="xref py py-func docutils literal notranslate"><span class="pre">array-like</span></code></a>}</span></dt><dd><p>Specify data in host. It can be array-like that is valid |
| argument to py_buffer</p> |
| </dd> |
| <dt><strong>position</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>Specify the starting position of the copy in device buffer. |
| Default: 0.</p> |
| </dd> |
| <dt><strong>nbytes</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>Specify the number of bytes to copy. Default: -1 (all from |
| source until device buffer, starting from position, is full)</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>nbytes</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>Number of bytes copied.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.copy_to_host"> |
| <span class="sig-name descname"><span class="pre">copy_to_host</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">int64_t</span> <span class="pre">position=0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">int64_t</span> <span class="pre">nbytes=-1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Buffer</span> <span class="pre">buf=None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">MemoryPool</span> <span class="pre">memory_pool=None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">resizable=False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.copy_to_host" title="Permalink to this definition">#</a></dt> |
| <dd><p>Copy memory from GPU device to CPU host</p> |
| <p>Caller is responsible for ensuring that all tasks affecting |
| the memory are finished. Use</p> |
| <blockquote> |
| <div><p><cite><CudaBuffer instance>.context.synchronize()</cite></p> |
| </div></blockquote> |
| <p>when needed.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>position</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>Specify the starting position of the source data in GPU |
| device buffer. Default: 0.</p> |
| </dd> |
| <dt><strong>nbytes</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>Specify the number of bytes to copy. Default: -1 (all from |
| the position until host buffer is full).</p> |
| </dd> |
| <dt><strong>buf</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Buffer</span></code></span></dt><dd><p>Specify a pre-allocated output buffer in host. Default: None |
| (allocate new output buffer).</p> |
| </dd> |
| <dt><strong>memory_pool</strong><span class="classifier"><a class="reference internal" href="pyarrow.MemoryPool.html#pyarrow.MemoryPool" title="pyarrow.MemoryPool"><code class="xref py py-obj docutils literal notranslate"><span class="pre">MemoryPool</span></code></a></span></dt><dd></dd> |
| <dt><strong>resizable</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a></span></dt><dd><p>Specify extra arguments to allocate_buffer. Used only when |
| buf is None.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>buf</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Buffer</span></code></span></dt><dd><p>Output buffer in host.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.equals"> |
| <span class="sig-name descname"><span class="pre">equals</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Buffer</span> <span class="pre">other</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.equals" title="Permalink to this definition">#</a></dt> |
| <dd><p>Determine if two buffers contain exactly the same data.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>other</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Buffer</span></code></span></dt><dd></dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>are_equal</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a></span></dt><dd><p>True if buffer contents and size are equal</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.export_for_ipc"> |
| <span class="sig-name descname"><span class="pre">export_for_ipc</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.export_for_ipc" title="Permalink to this definition">#</a></dt> |
| <dd><p>Expose this device buffer as IPC memory which can be used in other |
| processes.</p> |
| <p>After calling this function, this device memory will not be |
| freed when the CudaBuffer is destructed.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Returns<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>ipc_handle</strong><span class="classifier"><a class="reference internal" href="pyarrow.cuda.IpcMemHandle.html#pyarrow.cuda.IpcMemHandle" title="pyarrow.cuda.IpcMemHandle"><code class="xref py py-obj docutils literal notranslate"><span class="pre">IpcMemHandle</span></code></a></span></dt><dd><p>The exported IPC handle</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.from_buffer"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">from_buffer</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">buf</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.from_buffer" title="Permalink to this definition">#</a></dt> |
| <dd><p>Convert back generic buffer into CudaBuffer</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>buf</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Buffer</span></code></span></dt><dd><p>Specify buffer containing CudaBuffer</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>dbuf</strong><span class="classifier"><a class="reference internal" href="#pyarrow.cuda.CudaBuffer" title="pyarrow.cuda.CudaBuffer"><code class="xref py py-obj docutils literal notranslate"><span class="pre">CudaBuffer</span></code></a></span></dt><dd><p>Resulting device buffer.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.from_numba"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">from_numba</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">mem</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.from_numba" title="Permalink to this definition">#</a></dt> |
| <dd><p>Create a CudaBuffer view from numba MemoryPointer instance.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>mem</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">numba.cuda.cudadrv.driver.MemoryPointer</span></code></span></dt><dd></dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>cbuf</strong><span class="classifier"><a class="reference internal" href="#pyarrow.cuda.CudaBuffer" title="pyarrow.cuda.CudaBuffer"><code class="xref py py-obj docutils literal notranslate"><span class="pre">CudaBuffer</span></code></a></span></dt><dd><p>Device buffer as a view of numba MemoryPointer.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.hex"> |
| <span class="sig-name descname"><span class="pre">hex</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.hex" title="Permalink to this definition">#</a></dt> |
| <dd><p>Compute hexadecimal representation of the buffer.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Returns<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl class="simple"> |
| <dt>: <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bytes" title="(in Python v3.12)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">bytes</span></code></a></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.is_cpu"> |
| <span class="sig-name descname"><span class="pre">is_cpu</span></span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.is_cpu" title="Permalink to this definition">#</a></dt> |
| <dd><p>Whether the buffer is CPU-accessible.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.is_mutable"> |
| <span class="sig-name descname"><span class="pre">is_mutable</span></span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.is_mutable" title="Permalink to this definition">#</a></dt> |
| <dd><p>Whether the buffer is mutable.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.parent"> |
| <span class="sig-name descname"><span class="pre">parent</span></span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.parent" title="Permalink to this definition">#</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.size"> |
| <span class="sig-name descname"><span class="pre">size</span></span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.size" title="Permalink to this definition">#</a></dt> |
| <dd><p>The buffer size in bytes.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.slice"> |
| <span class="sig-name descname"><span class="pre">slice</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">offset</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">length</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.slice" title="Permalink to this definition">#</a></dt> |
| <dd><p>Return slice of device buffer</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>offset</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default 0</span></dt><dd><p>Specify offset from the start of device buffer to slice</p> |
| </dd> |
| <dt><strong>length</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Specify the length of slice (default is until end of device |
| buffer starting from offset). If the length is larger than |
| the data available, the returned slice will have a size of |
| the available data starting from the offset.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>sliced</strong><span class="classifier"><a class="reference internal" href="#pyarrow.cuda.CudaBuffer" title="pyarrow.cuda.CudaBuffer"><code class="xref py py-obj docutils literal notranslate"><span class="pre">CudaBuffer</span></code></a></span></dt><dd><p>Zero-copy slice of device buffer.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.to_numba"> |
| <span class="sig-name descname"><span class="pre">to_numba</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.to_numba" title="Permalink to this definition">#</a></dt> |
| <dd><p>Return numba memory pointer of CudaBuffer instance.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.cuda.CudaBuffer.to_pybytes"> |
| <span class="sig-name descname"><span class="pre">to_pybytes</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.cuda.CudaBuffer.to_pybytes" title="Permalink to this definition">#</a></dt> |
| <dd><p>Return device buffer content as Python bytes.</p> |
| </dd></dl> |
| |
| </dd></dl> |
| |
| </section> |
| |
| |
| </article> |
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| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.__init__"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.__init__()</span></code></a></li> |
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| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.copy_from_device"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.copy_from_device()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.copy_from_host"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.copy_from_host()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.copy_to_host"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.copy_to_host()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.equals"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.equals()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.export_for_ipc"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.export_for_ipc()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.from_buffer"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.from_buffer()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.from_numba"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.from_numba()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.hex"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.hex()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.is_cpu"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.is_cpu</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.is_mutable"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.is_mutable</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.parent"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.parent</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.size"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.size</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.slice"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.slice()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.to_numba"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.to_numba()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.cuda.CudaBuffer.to_pybytes"><code class="docutils literal notranslate"><span class="pre">CudaBuffer.to_pybytes()</span></code></a></li> |
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