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Searched refs:noise (Results 1 – 11 of 11) sorted by relevance

/petsc/src/binding/petsc4py/demo/regressor/
H A Dtest_regressor_synthetic.py39 def petsc_regression_test(nsample, nfeature, noise=0, rand_state=11): argument
44 noise=noise,
96 for noise,plt_ind in zip([0,0.1,1,10,100,1000],plt_ind_list):
97 xte,ypr = petsc_regression_test(args.nsample, args.nfeature, noise, rand_state)
108 plt.title('noise: '+str(noise))
/petsc/src/snes/interface/noise/
H A Dsnesmfj2.c73 PetscReal h, norm, sum, umin, noise; in SNESMatrixFreeMult2_Private() local
101 PetscCall(SNESDiffParameterCompute_More(snes, ctx->data, U, a, &noise, &h)); in SNESMatrixFreeMult2_Private()
109 PetscCall(SNESDiffParameterCompute_More(snes, ctx->data, U, a, &noise, &h)); in SNESMatrixFreeMult2_Private()
111 ctx->error_rel = PetscSqrtReal(noise); in SNESMatrixFreeMult2_Private()
113 …es, "Using Jorge's noise: noise=%g, sqrt(noise)=%g, h_more=%g\n", (double)noise, (double)ctx->erro… in SNESMatrixFreeMult2_Private()
/petsc/src/dm/impls/plex/tutorials/
H A Dex20.c199 PetscReal noise, gridSpacing = (upper[d] - lower[d]) / faces[d]; in main() local
202 noise = (PetscReal)seed / 2147483648.0; in main()
203 coords[d][v] += (noise - 0.5) * 0.001 * gridSpacing; in main()
/petsc/src/dm/impls/plex/tests/
H A Dex22.c130 PetscReal noise; in main() local
215 PetscCall(PetscRandomGetValueReal(randCtx, &noise)); in main()
216 coordArray[i] += noise * perturb; in main()
/petsc/src/ts/tutorials/power_grid/
H A Dex7.m3 % format for visualizing. Removes the first 49 y grid lines since they have noise from the initial
/petsc/src/tao/pde_constrained/tutorials/
H A Delliptic.c23 PetscReal noise; /* Amount of noise to add to data */ member
120 user.noise = 0.01; in main()
121 …l(PetscOptionsReal("-noise", "Amount of noise to add to data", "", user.noise, &user.noise, NULL)); in main()
1154 PetscCall(VecAYPX(user->ywork, user->noise, user->ytrue)); in EllipticInitialize()
H A Dparabolic.c24 PetscReal noise; /* Amount of noise to add to data */ member
122 user.noise = 0.01; in main()
123 …l(PetscOptionsReal("-noise", "Amount of noise to add to data", "", user.noise, &user.noise, NULL)); in main()
1170 PetscCall(VecAYPX(user->ywork, user->noise, user->ytrue)); in ParabolicInitialize()
/petsc/doc/community/meetings/2025/
H A Dindex.md98 …pect to dimension. Complex processes collectively referred to as particle noise hamper long time s…
/petsc/doc/manual/
H A Dsnes.md1164 noise of the functions. This can be selected with `-snes_mf_version 2`; it does not use `MatCreateM…
/petsc/share/petsc/datafiles/meshes/
H A Dtestcase3D.cas5309 (temperature/damped-noise-verbosity? #f)
5310 (enthalpy/damped-noise-verbosity? #f)
5311 (enthalpy/damped-noise-marking-udm? #f)
5312 (enthalpy/damped-noise-marking 0)
5313 (enthalpy/damped-noise-mode 0)
5314 (enthalpy/damped-noise? #f)
/petsc/doc/
H A Dpetsc.bib1404 title = {Effect of thermal fluctuation field on the noise performance of a perpendicular