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24 lines
985 B
ReStructuredText
24 lines
985 B
ReStructuredText
.. meta::
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:description: runtime compilation in rocFFT
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:keywords: rocFFT, ROCm, API, documentation, runtime, compilation
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.. _runtime-compilation:
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********************************************************************
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Runtime compilation
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********************************************************************
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rocFFT includes many kernels for common FFT problems. Many plans
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require additional kernels aside from the ones built into the
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library. In these cases, rocFFT compiles optimized kernels for
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the plan when the plan is created.
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Compiled kernels are stored in memory by default. They will be reused
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if they are required again for plans in the same process.
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If the ``ROCFFT_RTC_CACHE_PATH`` environment variable is set to a
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writable file location, rocFFT writes the compiled kernels to this
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location. rocFFT reads the kernels from this location for plans in
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other processes that need runtime-compiled kernels. rocFFT will
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create the specified file if it does not already exist.
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