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<h1 title="Package" class="title">Package edu.rit.gpu</h1>
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<div class="docSummary">
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<div class="block">Package edu.rit.gpu contains classes for
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Parallel Java 2's graphics processing unit (GPU) programming capability.</div>
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</div>
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<p>See: <a href="#package_description">Description</a></p>
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<caption><span>Interface Summary</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Interface</th>
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<th class="colLast" scope="col">Description</th>
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</tr>
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<tbody>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/Kernel.html" title="interface in edu.rit.gpu">Kernel</a></td>
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<td class="colLast">
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<div class="block">Interface Kernel specifies the base interface for a GPU kernel function.</div>
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</td>
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</tbody>
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</table>
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<table class="packageSummary" border="0" cellpadding="3" cellspacing="0" summary="Class Summary table, listing classes, and an explanation">
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<caption><span>Class Summary</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Class</th>
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<th class="colLast" scope="col">Description</th>
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</tr>
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<tbody>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/Gpu.html" title="class in edu.rit.gpu">Gpu</a></td>
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<td class="colLast">
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<div class="block">Class Gpu encapsulates a graphics processing unit (GPU) compute device.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuArray.html" title="class in edu.rit.gpu">GpuArray</a></td>
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<td class="colLast">
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<div class="block">Class GpuArray is the abstract base class for a GPU array variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuByteArray.html" title="class in edu.rit.gpu">GpuByteArray</a></td>
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<td class="colLast">
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<div class="block">Class GpuByteArray provides a byte array GPU variable.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuByteMatrix.html" title="class in edu.rit.gpu">GpuByteMatrix</a></td>
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<td class="colLast">
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<div class="block">Class GpuByteMatrix provides a byte matrix GPU variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuByteVbl.html" title="class in edu.rit.gpu">GpuByteVbl</a></td>
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<td class="colLast">
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<div class="block">Class GpuByteVbl provides a byte GPU variable.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuDoubleArray.html" title="class in edu.rit.gpu">GpuDoubleArray</a></td>
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<td class="colLast">
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<div class="block">Class GpuDoubleArray provides a double array GPU variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuDoubleMatrix.html" title="class in edu.rit.gpu">GpuDoubleMatrix</a></td>
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<td class="colLast">
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<div class="block">Class GpuDoubleMatrix provides a double matrix GPU variable.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuDoubleVbl.html" title="class in edu.rit.gpu">GpuDoubleVbl</a></td>
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<td class="colLast">
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<div class="block">Class GpuDoubleVbl provides a double GPU variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuFloatArray.html" title="class in edu.rit.gpu">GpuFloatArray</a></td>
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<td class="colLast">
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<div class="block">Class GpuFloatArray provides a float array GPU variable.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuFloatMatrix.html" title="class in edu.rit.gpu">GpuFloatMatrix</a></td>
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<td class="colLast">
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<div class="block">Class GpuFloatMatrix provides a float matrix GPU variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuFloatVbl.html" title="class in edu.rit.gpu">GpuFloatVbl</a></td>
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<td class="colLast">
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<div class="block">Class GpuFloatVbl provides a float GPU variable.</div>
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</td>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuIntArray.html" title="class in edu.rit.gpu">GpuIntArray</a></td>
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<td class="colLast">
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<div class="block">Class GpuIntArray provides an integer array GPU variable.</div>
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</td>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuIntMatrix.html" title="class in edu.rit.gpu">GpuIntMatrix</a></td>
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<td class="colLast">
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<div class="block">Class GpuIntMatrix provides an integer matrix GPU variable.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuIntVbl.html" title="class in edu.rit.gpu">GpuIntVbl</a></td>
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<td class="colLast">
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<div class="block">Class GpuIntVbl provides an integer GPU variable.</div>
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</td>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuLongArray.html" title="class in edu.rit.gpu">GpuLongArray</a></td>
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<td class="colLast">
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<div class="block">Class GpuLongArray provides a long integer array GPU variable.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuLongMatrix.html" title="class in edu.rit.gpu">GpuLongMatrix</a></td>
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<td class="colLast">
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<div class="block">Class GpuLongMatrix provides a long integer matrix GPU variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuLongVbl.html" title="class in edu.rit.gpu">GpuLongVbl</a></td>
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<td class="colLast">
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<div class="block">Class GpuLongVbl provides a long integer GPU variable.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuMatrix.html" title="class in edu.rit.gpu">GpuMatrix</a></td>
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<td class="colLast">
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<div class="block">Class GpuMatrix is the abstract base class for a GPU matrix variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuShortArray.html" title="class in edu.rit.gpu">GpuShortArray</a></td>
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<td class="colLast">
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<div class="block">Class GpuShortArray provides a short integer array GPU variable.</div>
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</td>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuShortMatrix.html" title="class in edu.rit.gpu">GpuShortMatrix</a></td>
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<td class="colLast">
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<div class="block">Class GpuShortMatrix provides a short integer matrix GPU variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuShortVbl.html" title="class in edu.rit.gpu">GpuShortVbl</a></td>
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<td class="colLast">
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<div class="block">Class GpuShortVbl provides a short integer GPU variable.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuStructArray.html" title="class in edu.rit.gpu">GpuStructArray</a><T extends <a href="../../../edu/rit/gpu/Struct.html" title="class in edu.rit.gpu">Struct</a>></td>
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<td class="colLast">
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<div class="block">Class GpuStructArray provides a struct array GPU variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuStructVbl.html" title="class in edu.rit.gpu">GpuStructVbl</a><T extends <a href="../../../edu/rit/gpu/Struct.html" title="class in edu.rit.gpu">Struct</a>></td>
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<td class="colLast">
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<div class="block">Class GpuStructVbl provides a struct GPU variable.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuVbl.html" title="class in edu.rit.gpu">GpuVbl</a></td>
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<td class="colLast">
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<div class="block">Class GpuVbl is the abstract base class for a GPU variable.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/Module.html" title="class in edu.rit.gpu">Module</a></td>
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<td class="colLast">
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<div class="block">Class Module encapsulates a module that contains GPU kernel functions and
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data.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/Struct.html" title="class in edu.rit.gpu">Struct</a></td>
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<td class="colLast">
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<div class="block">Class Struct is the abstract base class for a Java object on the CPU that is
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converted to or from a C struct on the GPU.</div>
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</td>
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</tr>
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</tbody>
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</table>
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</li>
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<table class="packageSummary" border="0" cellpadding="3" cellspacing="0" summary="Enum Summary table, listing enums, and an explanation">
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<caption><span>Enum Summary</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Enum</th>
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<th class="colLast" scope="col">Description</th>
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</tr>
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<tbody>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/CacheConfig.html" title="enum in edu.rit.gpu">CacheConfig</a></td>
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<td class="colLast">
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<div class="block">Enum CacheConfig enumerates GPU cache configurations.</div>
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</td>
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</table>
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<table class="packageSummary" border="0" cellpadding="3" cellspacing="0" summary="Exception Summary table, listing exceptions, and an explanation">
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<caption><span>Exception Summary</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Exception</th>
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<th class="colLast" scope="col">Description</th>
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<tbody>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/CudaException.html" title="class in edu.rit.gpu">CudaException</a></td>
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<td class="colLast">
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<div class="block">Class CudaException is the base class for an exception thrown if a CUDA error
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occurred.</div>
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</td>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/DeinitializedCudaException.html" title="class in edu.rit.gpu">DeinitializedCudaException</a></td>
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<td class="colLast">
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<div class="block">Class DeinitializedCudaException is thrown if a CUDA_ERROR_DEINITIALIZED
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error occurred.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/FileNotFoundCudaException.html" title="class in edu.rit.gpu">FileNotFoundCudaException</a></td>
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<td class="colLast">
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<div class="block">Class FileNotFoundCudaException is thrown if a CUDA_ERROR_FILE_NOT_FOUND
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error occurred.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuException.html" title="class in edu.rit.gpu">GpuException</a></td>
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<td class="colLast">
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<div class="block">Class GpuException is the base class for an exception thrown if a GPU error
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occurred.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/GpuNotSupportedException.html" title="class in edu.rit.gpu">GpuNotSupportedException</a></td>
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<td class="colLast">
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<div class="block">Class GpuNotSupportedException is thrown if GPU parallel programs are not
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supported.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/InvalidContextCudaException.html" title="class in edu.rit.gpu">InvalidContextCudaException</a></td>
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<td class="colLast">
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<div class="block">Class InvalidContextCudaException is thrown if a CUDA_ERROR_INVALID_CONTEXT
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error occurred.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/InvalidDeviceCudaException.html" title="class in edu.rit.gpu">InvalidDeviceCudaException</a></td>
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<td class="colLast">
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<div class="block">Class InvalidDeviceCudaException is thrown if a CUDA_ERROR_INVALID_DEVICE
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error occurred.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/InvalidHandleCudaException.html" title="class in edu.rit.gpu">InvalidHandleCudaException</a></td>
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<td class="colLast">
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<div class="block">Class InvalidHandleCudaException is thrown if a CUDA_ERROR_INVALID_HANDLE
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error occurred.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/InvalidImageCudaException.html" title="class in edu.rit.gpu">InvalidImageCudaException</a></td>
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<td class="colLast">
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<div class="block">Class InvalidImageCudaException is thrown if a CUDA_ERROR_INVALID_IMAGE
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error occurred.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/InvalidValueCudaException.html" title="class in edu.rit.gpu">InvalidValueCudaException</a></td>
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<td class="colLast">
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<div class="block">Class InvalidValueCudaException is thrown if a CUDA_ERROR_INVALID_VALUE error
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occurred.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/LaunchFailedCudaException.html" title="class in edu.rit.gpu">LaunchFailedCudaException</a></td>
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<td class="colLast">
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<div class="block">Class LaunchFailedCudaException is thrown if a CUDA_ERROR_LAUNCH_FAILED
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error occurred.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/LaunchIncompatibleTexturingCudaException.html" title="class in edu.rit.gpu">LaunchIncompatibleTexturingCudaException</a></td>
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<td class="colLast">
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<div class="block">Class LaunchIncompatibleTexturingCudaException is thrown if a
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CUDA_ERROR_LAUNCH_INCOMPATIBLE_TEXTURING error occurred.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/LaunchOutOfResourcesCudaException.html" title="class in edu.rit.gpu">LaunchOutOfResourcesCudaException</a></td>
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<td class="colLast">
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<div class="block">Class LaunchOutOfResourcesCudaException is thrown if a
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CUDA_ERROR_LAUNCH_OUT_OF_RESOURCES error occurred.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/LaunchTimeoutCudaException.html" title="class in edu.rit.gpu">LaunchTimeoutCudaException</a></td>
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<td class="colLast">
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<div class="block">Class LaunchTimeoutCudaException is thrown if a CUDA_ERROR_LAUNCH_TIMEOUT
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error occurred.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><a href="../../../edu/rit/gpu/NotFoundCudaException.html" title="class in edu.rit.gpu">NotFoundCudaException</a></td>
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<td class="colLast">
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|
<div class="block">Class NotFoundCudaException is thrown if a CUDA_ERROR_NOT_FOUND error
|
|
occurred.</div>
|
|
</td>
|
|
</tr>
|
|
<tr class="rowColor">
|
|
<td class="colFirst"><a href="../../../edu/rit/gpu/NotInitializedCudaException.html" title="class in edu.rit.gpu">NotInitializedCudaException</a></td>
|
|
<td class="colLast">
|
|
<div class="block">Class NotInitializedCudaException is thrown if a CUDA_ERROR_NOT_INITIALIZED
|
|
error occurred.</div>
|
|
</td>
|
|
</tr>
|
|
<tr class="altColor">
|
|
<td class="colFirst"><a href="../../../edu/rit/gpu/OutOfMemoryCudaException.html" title="class in edu.rit.gpu">OutOfMemoryCudaException</a></td>
|
|
<td class="colLast">
|
|
<div class="block">Class OutOfMemoryCudaException is thrown if a CUDA_ERROR_OUT_OF_MEMORY error
|
|
occurred.</div>
|
|
</td>
|
|
</tr>
|
|
<tr class="rowColor">
|
|
<td class="colFirst"><a href="../../../edu/rit/gpu/SharedObjectInitFailedCudaException.html" title="class in edu.rit.gpu">SharedObjectInitFailedCudaException</a></td>
|
|
<td class="colLast">
|
|
<div class="block">Class SharedObjectInitFailedCudaException is thrown if a
|
|
CUDA_ERROR_SHARED_OBJECT_INIT_FAILED error occurred.</div>
|
|
</td>
|
|
</tr>
|
|
<tr class="altColor">
|
|
<td class="colFirst"><a href="../../../edu/rit/gpu/SharedObjectSymbolNotFoundCudaException.html" title="class in edu.rit.gpu">SharedObjectSymbolNotFoundCudaException</a></td>
|
|
<td class="colLast">
|
|
<div class="block">Class SharedObjectSymbolNotFoundCudaException is thrown if a
|
|
CUDA_ERROR_SHARED_OBJECT_SYMBOL_NOT_FOUND error occurred.</div>
|
|
</td>
|
|
</tr>
|
|
<tr class="rowColor">
|
|
<td class="colFirst"><a href="../../../edu/rit/gpu/UnknownCudaException.html" title="class in edu.rit.gpu">UnknownCudaException</a></td>
|
|
<td class="colLast">
|
|
<div class="block">Class UnknownCudaException is thrown if a CUDA_ERROR_UNKNOWN error occurred.</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</li>
|
|
</ul>
|
|
<a name="package_description">
|
|
<!-- -->
|
|
</a>
|
|
<h2 title="Package edu.rit.gpu Description">Package edu.rit.gpu Description</h2>
|
|
<div class="block">Package edu.rit.gpu contains classes for
|
|
Parallel Java 2's graphics processing unit (GPU) programming capability.
|
|
At present the package supports GPU kernels
|
|
written using Nvidia Corporation's CUDA version 5.0.
|
|
|
|
<P>
|
|
A PJ2 GPU program's main program is written in Java using PJ2.
|
|
The GPU kernels are written in C or C++ using CUDA.
|
|
Classes in package edu.rit.gpu
|
|
let the main program transfer data
|
|
between the CPU's memory and the GPU's memory,
|
|
execute kernel functions on the GPU,
|
|
and do other GPU related operations.
|
|
|
|
<P>
|
|
<A HREF="#installation">Installation</A>
|
|
<BR><A HREF="#usage">Usage</A>
|
|
<BR><A HREF="#writing">Writing PJ2 GPU Programs</A>
|
|
|
|
<P>
|
|
<HR>
|
|
<A NAME="installation"><H2>Installation</H2></A>
|
|
|
|
<P>
|
|
Do the following steps to install PJ2's GPU capability.
|
|
These steps are not needed
|
|
if PJ2's GPU capability is not needed.
|
|
Some familiarity with the Java Native Interface (JNI)
|
|
would be helpful;
|
|
see Sheng Liang,
|
|
<I>Java Native Interface: Programmer's Guide and Specification</I>
|
|
(Addison-Wesley, 1999).
|
|
<OL TYPE=1>
|
|
<P><LI>
|
|
Install CUDA.
|
|
<P><LI>
|
|
Install the PJ2 <B><I>source</I></B> distribution as described in the
|
|
<A HREF="../../../overview-summary.html#installation">Overview</A>.
|
|
<P><LI>
|
|
Change to the <TT>lib/</TT> directory
|
|
in the source distribution
|
|
and run the <TT>ccompile</TT> shell script.
|
|
On a Linux system,
|
|
this compiles the <TT>edu_rit_gpu_Cuda.c</TT> source file
|
|
and creates the <TT>libEduRitGpuCuda.so</TT> native code library file.
|
|
You might need to modify the shell script
|
|
to create the proper native code library file for your system.
|
|
<P><LI>
|
|
Move the native code library file
|
|
to a directory on the load library path,
|
|
where the Java Virtual Machine can find it.
|
|
See "Usage" below.
|
|
<P><LI>
|
|
Change to the <TT>lib/edu/rit/gpu/example/</TT> directory
|
|
in the source distribution
|
|
and run the <TT>ccompile</TT> shell script.
|
|
This compiles the CUDA module files
|
|
needed by the Java classes in package
|
|
<A HREF="example/package-summary.html">edu.rit.gpu.example</A>.
|
|
You might need to modify the shell script for your system.
|
|
<P><LI>
|
|
Change to the <TT>lib/edu/rit/gpu/test/</TT> directory
|
|
and run the <TT>ccompile</TT> shell script.
|
|
This compiles the CUDA module files
|
|
needed by the Java classes in package
|
|
<A HREF="test/package-summary.html">edu.rit.gpu.test</A>.
|
|
You might need to modify the shell script for your system.
|
|
<P><LI>
|
|
If you are installing the PJ2 <B><I>executable</I></B> distribution
|
|
as described in the
|
|
<A HREF="../../../overview-summary.html#installation">Overview</A>,
|
|
the compiled CUDA module files
|
|
must be added to the PJ2 JAR file.
|
|
Change to the <TT>lib/</TT> directory
|
|
in the source distribution
|
|
and run this command:
|
|
<BR><TT> jar uf <jarfile> edu/rit/gpu/*/*.cubin edu/rit/gpu/*/*.ptx</TT>
|
|
<BR>replacing <TT><jarfile></TT>
|
|
with the pathname of the PJ2 JAR file.
|
|
</OL>
|
|
|
|
<P>
|
|
<HR>
|
|
<A NAME="usage"><H2>Usage</H2></A>
|
|
|
|
<P>
|
|
When compiling and executing Java programs
|
|
that use PJ2's GPU capability,
|
|
in addition to setting the Java class path
|
|
as described in the
|
|
<A HREF="../../../overview-summary.html#usage">Overview</A>,
|
|
you must also set your load library path
|
|
to include the directory where the PJ2 native code library file resides.
|
|
Here is an example of a command for the <TT>bash</TT> shell
|
|
to add an appropriate directory
|
|
to the front of the load library path:
|
|
|
|
<P>
|
|
<TT>export LD_LIBRARY_PATH=/var/tmp/parajava/pj2:$LD_LIBRARY_PATH</TT>
|
|
|
|
<P>
|
|
Here is an example of a command for the <TT>csh</TT> shell
|
|
to add an appropriate directory
|
|
to the front of the load library path:
|
|
|
|
<P>
|
|
<TT>setenv LD_LIBRARY_PATH /var/tmp/parajava/pj2:$LD_LIBRARY_PATH</TT>
|
|
|
|
<P>
|
|
<HR>
|
|
<A NAME="writing"><H2>Writing PJ2 GPU Programs</H2></A>
|
|
|
|
<P>
|
|
Use class <A HREF="Gpu.html">Gpu</A>
|
|
to configure GPU devices,
|
|
load compiled GPU module files,
|
|
and set up dynamically allocated variables in GPU memory.
|
|
|
|
<P>
|
|
Use class <A HREF="Module.html">Module</A>
|
|
to get statically allocated GPU variables
|
|
and GPU kernel functions
|
|
from a compiled GPU module.
|
|
|
|
<P>
|
|
Use interface <A HREF="Kernel.html">Kernel</A>
|
|
to configure and execute GPU kernel functions.
|
|
|
|
<P>
|
|
For further information,
|
|
study and run the example programs in package
|
|
<A HREF="example/package-summary.html">edu.rit.gpu.example</A>.</div>
|
|
</div>
|
|
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<p class="legalCopy"><small><FONT SIZE="-2">Copyright © 2013–2016 by Alan Kaminsky. All rights reserved. Send comments to ark</FONT><FONT SIZE="1" COLOR="#FFFFFF">­</FONT><FONT SIZE="-2">@</FONT><FONT SIZE="1" COLOR="#FFFFFF">­</FONT><FONT SIZE="-2">cs.rit.edu.</FONT></small></p>
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