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/******************************************************************************
* Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*******************************************************************************/
#include "chirp.h"
#include "../../shared/arithmetic.h"
#include "../../shared/hip_object_wrapper.h"
#include "../../shared/rocfft_complex.h"
#include "../../shared/rocfft_hip.h"
#include "rtc_cache.h"
#include "rtc_chirp_kernel.h"
#include "rtc_kernel.h"
#include <cassert>
#include <iostream>
#include <math.h>
#include <numeric>
#include <stdexcept>
#include <string>
#include <tuple>
// this vector stores chirp for each device id. index in the
// vector is device id. note that this vector needs to be protected
// against concurrent access, but chirp are always accessed
// through the Repo which guarantees exclusive access.
static std::vector<hipStream_wrapper_t> chirp_streams;
void chirp_streams_cleanup()
{
chirp_streams.clear();
}
template <typename Tcomplex>
void launch_chirp_kernel(const size_t N,
rocfft_precision precision,
const hipDeviceProp_t& deviceProp,
hipStream_t& stream,
Tcomplex* output)
{
auto blockSize = CHIRP_THREADS;
auto numBlocks = DivRoundingUp<size_t>(N, blockSize);
auto kernel = RTCKernelChirp::generate(deviceProp.gcnArchName, precision);
RTCKernelArgs kargs;
kargs.append_size_t(N);
kargs.append_ptr(output);
kernel.launch(kargs, dim3(numBlocks), dim3(blockSize), 0, deviceProp, stream);
}
template <typename Tcomplex>
gpubuf chirp_create_pr(size_t N,
rocfft_precision precision,
unsigned int deviceId,
const hipDeviceProp_t& deviceProp)
{
gpubuf chirp;
auto chirp_bytes = N * sizeof(Tcomplex);
if(chirp.alloc(chirp_bytes) != hipSuccess)
throw std::runtime_error("unable to allocate chirp length " + std::to_string(N));
if(deviceId >= chirp_streams.size())
chirp_streams.resize(deviceId + 1);
hipStream_wrapper_t& stream = chirp_streams[deviceId];
if(!stream)
stream.alloc();
auto device_chirp_ptr = static_cast<Tcomplex*>(chirp.data());
launch_chirp_kernel(N, precision, deviceProp, stream, device_chirp_ptr);
if(hipStreamSynchronize(stream) != hipSuccess)
throw std::runtime_error("hipStream failure");
return chirp;
}
gpubuf chirp_create(size_t N,
rocfft_precision precision,
unsigned int deviceId,
const hipDeviceProp_t& deviceProp)
{
switch(precision)
{
case rocfft_precision_single:
return chirp_create_pr<rocfft_complex<float>>(N, precision, deviceId, deviceProp);
case rocfft_precision_double:
return chirp_create_pr<rocfft_complex<double>>(N, precision, deviceId, deviceProp);
case rocfft_precision_half:
return chirp_create_pr<rocfft_complex<rocfft_fp16>>(N, precision, deviceId, deviceProp);
}
}
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