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<div class="subTitle">com.ibm.cuda</div>
<h2 title="Class CudaStream" class="title">Class CudaStream</h2>
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<li>com.ibm.cuda.CudaStream</li>
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<pre>public final class <span class="typeNameLabel">CudaStream</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" target="_blank" title="class or interface in java.lang">Object</a>
implements <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" target="_blank" title="class or interface in java.lang">AutoCloseable</a></pre>
<div class="block">The <code>CudaStream</code> class represents an independent queue of work for a
specific <a href="../../../com/ibm/cuda/CudaDevice.html" title="class in com.ibm.cuda"><code>CudaDevice</code></a>.
<p>
When no longer required, a stream must be <code>close</code>d.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#FLAG_DEFAULT">FLAG_DEFAULT</a></span></code>
<div class="block">Default stream creation flag.</div>
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<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#FLAG_NON_BLOCKING">FLAG_NON_BLOCKING</a></span></code>
<div class="block">Stream creation flag requesting no implicit synchronization with the
default stream.</div>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#CudaStream-com.ibm.cuda.CudaDevice-">CudaStream</a></span>(<a href="../../../com/ibm/cuda/CudaDevice.html" title="class in com.ibm.cuda">CudaDevice</a>&nbsp;device)</code>
<div class="block">Creates a new stream on the specified device, with the default flags
and the default priority.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#CudaStream-com.ibm.cuda.CudaDevice-int-int-">CudaStream</a></span>(<a href="../../../com/ibm/cuda/CudaDevice.html" title="class in com.ibm.cuda">CudaDevice</a>&nbsp;device,
int&nbsp;flags,
int&nbsp;priority)</code>
<div class="block">Creates a new stream on the specified device, with the specified flags
and priority.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#addCallback-java.lang.Runnable-">addCallback</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Runnable.html?is-external=true" target="_blank" title="class or interface in java.lang">Runnable</a>&nbsp;callback)</code>
<div class="block">Enqueues a callback to be run after all previous work on this stream
has been completed.</div>
</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#close--">close</a></span>()</code>
<div class="block">Closes this stream.</div>
</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#getFlags--">getFlags</a></span>()</code>
<div class="block">Returns the flags of this stream.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#getPriority--">getPriority</a></span>()</code>
<div class="block">Returns the priority of this stream.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#query--">query</a></span>()</code>
<div class="block">Queries the state of this stream.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#synchronize--">synchronize</a></span>()</code>
<div class="block">Synchronizes with this stream.</div>
</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../com/ibm/cuda/CudaStream.html#waitFor-com.ibm.cuda.CudaEvent-">waitFor</a></span>(<a href="../../../com/ibm/cuda/CudaEvent.html" title="class in com.ibm.cuda">CudaEvent</a>&nbsp;event)</code>
<div class="block">Makes all future work submitted to this stream wait for the specified
event to occur.</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" target="_blank" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>FLAG_DEFAULT</h4>
<pre>public static final&nbsp;int FLAG_DEFAULT</pre>
<div class="block">Default stream creation flag.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../constant-values.html#com.ibm.cuda.CudaStream.FLAG_DEFAULT">Constant Field Values</a></dd>
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<h4>FLAG_NON_BLOCKING</h4>
<pre>public static final&nbsp;int FLAG_NON_BLOCKING</pre>
<div class="block">Stream creation flag requesting no implicit synchronization with the
default stream.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../constant-values.html#com.ibm.cuda.CudaStream.FLAG_NON_BLOCKING">Constant Field Values</a></dd>
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<h4>CudaStream</h4>
<pre>public&nbsp;CudaStream(<a href="../../../com/ibm/cuda/CudaDevice.html" title="class in com.ibm.cuda">CudaDevice</a>&nbsp;device)
throws <a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></pre>
<div class="block">Creates a new stream on the specified device, with the default flags
and the default priority.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>device</code> - the specified device</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></code> - if a CUDA exception occurs</dd>
</dl>
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<h4>CudaStream</h4>
<pre>public&nbsp;CudaStream(<a href="../../../com/ibm/cuda/CudaDevice.html" title="class in com.ibm.cuda">CudaDevice</a>&nbsp;device,
int&nbsp;flags,
int&nbsp;priority)
throws <a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></pre>
<div class="block">Creates a new stream on the specified device, with the specified flags
and priority.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>device</code> - the specified device</dd>
<dd><code>flags</code> - the desired flags</dd>
<dd><code>priority</code> - the desired priority</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></code> - if a CUDA exception occurs</dd>
</dl>
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<h4>addCallback</h4>
<pre>public&nbsp;void&nbsp;addCallback(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Runnable.html?is-external=true" target="_blank" title="class or interface in java.lang">Runnable</a>&nbsp;callback)
throws <a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></pre>
<div class="block">Enqueues a callback to be run after all previous work on this stream
has been completed.
<p>
Note that the callback will occur on a distinct thread. Further, any
attempts to interact with CUDA devices will fail with a CudaException
with code <a href="../../../com/ibm/cuda/CudaError.html#NotPermitted"><code>CudaError.NotPermitted</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>callback</code> - the runnable to be run</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></code> - if a CUDA exception occurs</dd>
</dl>
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<h4>close</h4>
<pre>public&nbsp;void&nbsp;close()
throws <a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></pre>
<div class="block">Closes this stream.
Any work queued on this stream will be allowed to complete: this method
does not wait for that work (if any) to complete.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true#close--" title="class or interface in java.lang">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" target="_blank" title="class or interface in java.lang">AutoCloseable</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></code> - if a CUDA exception occurs</dd>
</dl>
</li>
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<a name="getFlags--">
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<h4>getFlags</h4>
<pre>public&nbsp;int&nbsp;getFlags()
throws <a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></pre>
<div class="block">Returns the flags of this stream.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the flags of this stream</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></code> - if a CUDA exception occurs</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" target="_blank" title="class or interface in java.lang">IllegalStateException</a></code> - if this stream has been closed (see <a href="../../../com/ibm/cuda/CudaStream.html#close--"><code>close()</code></a>)</dd>
</dl>
</li>
</ul>
<a name="getPriority--">
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<h4>getPriority</h4>
<pre>public&nbsp;int&nbsp;getPriority()
throws <a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></pre>
<div class="block">Returns the priority of this stream.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the priority of this stream</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></code> - if a CUDA exception occurs</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" target="_blank" title="class or interface in java.lang">IllegalStateException</a></code> - if this stream has been closed (see <a href="../../../com/ibm/cuda/CudaStream.html#close--"><code>close()</code></a>)</dd>
</dl>
</li>
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<a name="query--">
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<h4>query</h4>
<pre>public&nbsp;int&nbsp;query()</pre>
<div class="block">Queries the state of this stream.
The common normally occurring states are:
<ul>
<li>CudaError.Success - stream has no pending work</li>
<li>CudaError.NotReady - stream has pending work</li>
</ul></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the state of this stream</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" target="_blank" title="class or interface in java.lang">IllegalStateException</a></code> - if this stream has been closed (see <a href="../../../com/ibm/cuda/CudaStream.html#close--"><code>close()</code></a>)</dd>
</dl>
</li>
</ul>
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<h4>synchronize</h4>
<pre>public&nbsp;void&nbsp;synchronize()
throws <a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></pre>
<div class="block">Synchronizes with this stream.
This method blocks until all work queued on this stream has completed.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></code> - if a CUDA exception occurs</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" target="_blank" title="class or interface in java.lang">IllegalStateException</a></code> - if this stream has been closed (see <a href="../../../com/ibm/cuda/CudaStream.html#close--"><code>close()</code></a>)</dd>
</dl>
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<h4>waitFor</h4>
<pre>public&nbsp;void&nbsp;waitFor(<a href="../../../com/ibm/cuda/CudaEvent.html" title="class in com.ibm.cuda">CudaEvent</a>&nbsp;event)
throws <a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></pre>
<div class="block">Makes all future work submitted to this stream wait for the specified
event to occur.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>event</code> - the specified event</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../com/ibm/cuda/CudaException.html" title="class in com.ibm.cuda">CudaException</a></code> - if a CUDA exception occurs</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" target="_blank" title="class or interface in java.lang">IllegalStateException</a></code> - if this stream has been closed (see <a href="../../../com/ibm/cuda/CudaStream.html#close--"><code>close()</code></a>),
or the event has been closed (see <a href="../../../com/ibm/cuda/CudaEvent.html#close--"><code>CudaEvent.close()</code></a>)</dd>
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