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[Diffusion] Add C++ dpm solver (#714)
* Add BetaForAlphaBar, ConvertModelOutput, SetTimesteps, and constructor for DPMSolverMultistepScheduler * tmp * Add DPMSolverFirstOrderUpdate * Add ScaleModelInput * Add MultiStepDPMSolverSecondOrderUpdate * add MultiStepDPMSolverThirdOrderUpdate * Add Step * Add FASTDEPLOY_DECL * Add AddNoise * Fix operator * update * Fix DPMSolverMultistepScheduler * Upgrade Slice * Fix DPMSolverFirstOrderUpdate * remove FASTDEPLOY_DECL * Add config for dpm solver
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examples/multimodal/stable_diffusion/cpp/main.cc
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examples/multimodal/stable_diffusion/cpp/main.cc
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// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "dpm_solver_multistep_scheduler.h"
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#include <iostream>
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int main() {
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fastdeploy::DPMSolverMultistepScheduler dpm(
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/* num_train_timesteps */ 1000,
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/* beta_start = */ 0.00085,
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/* beta_end = */ 0.012,
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/* beta_schedule = */ "scaled_linear",
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/* trained_betas = */ {},
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/* solver_order = */ 2,
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/* predict_epsilon = */ true,
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/* thresholding = */ false,
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/* dynamic_thresholding_ratio = */ 0.995,
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/* sample_max_value = */ 1.0,
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/* algorithm_type = */ "dpmsolver++",
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/* solver_type = */ "midpoint",
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/* lower_order_final = */ true);
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return 0;
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}
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