solver_type: either 'dpm_solver' or 'taylor'. The type for the high-order solvers.The type slightly impacts the performance. We recommend to use 'dpm_solver' type.Returns: x_0: A jnp.DeviceArray. The approximated solution at time `t_0`....
We initialize the first order values by lower order multistep solvers.Given a fixed NFE == steps, the sampling procedure is:Denote K = steps. If order == 1: We use K steps of DPM-Solver-1 (i.e. DDIM). If order == 2: We firstly use 1 step of DPM-Solver-1, then use (K ...
In addition, deepfloyd-if's model output contains both mean and variance, and we only need the first three channels for ODE solvers. In my own experience, dpm-solver can greatly reduce the inference steps of deepfloyd-if: For both stage-2 and stage-3 (upscaling), I find that the 25-...
Hello! I would like to receive some help with understanding which integration time step is used in the unsteady dpm model in Fluent. I have the
Currently, there are two types of solvers used to calculate ventilation system solutions, which are network solvers and CFD. The hybrid methodology is proposed to provide improved diesel input to a ventilation network model using CFD. The hybrid methodology combines the two solvers through commonly ...
I will test it with the latest OF version compatible with the TwoPhaseFlow library, OF2112, but I have to recompile the libraries and solvers. The error happens when the solver tries to adapt the mesh in the first time-step, before the particles are injected. It is weird that it...
Chemistryinvariablystiff Reactiontime/lengthscales<<flowtime/lengthscalesSpecialnumericalmethodsrequired(stiffsolvers)Non-premixed(diffusionflames)Fuelandoxidizerdiffuseintothereactionzone,thenburn Premixed Fuelandoxidizermixedmolecularly,thenburnMovingreactionfront–usuallythinanddifficulttomodelDeflagrations Subsonic:very...
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a first-order diffusion ODE solver that generally needs 100 to 250 steps for high-quality samples. Although recent works propose dedicated high-order solvers and achieve a further speedup for sampling without guidance, their effectiveness for guided sampling has not been well-tested before. In this...