Example #1
0
def FVc_test(qh_py, dX, dt, fvSolver):

    SOURCES = fvSolver.S is not None
    TIME = fvSolver.time_rec
    NV = fvSolver.NV
    NDIM = fvSolver.NDIM
    MP = fvSolver.pars
    mask = None

    if not SOURCES:
        shape = qh_py.shape
        newShape = shape[:NDIM] + (1,) + shape[NDIM:]
        qh_py = qh_py.reshape(newShape)

    nX = array(qh_py.shape[:NDIM])
    ncell = prod(nX)
    mask = ones(ncell, dtype=bool)

    FVc_py = zeros(list(nX - 2) + [NV])
    FVc_cp = zeros(FVc_py.size)

    if NDIM == 1:
        GPRpy.solvers.fv.centers1(FVc_cp, qh_py.ravel(), nX[0] - 2, dt, dX[0],
                                  SOURCES, TIME, MP, mask)

    elif NDIM == 2:
        GPRpy.solvers.fv.centers2(FVc_cp, qh_py.ravel(), nX[0] - 2, nX[1] - 2, dt,
                                  dX[0], dX[1], SOURCES, TIME, MP, mask)

    fvSolver.centers(FVc_py, qh_py, dX, mask)
    FVc_py *= dt

    FVc_cp = FVc_cp.reshape(FVc_py.shape)
    print("FVc   ", check(FVc_cp, FVc_py))
    return FVc_cp, FVc_py
Example #2
0
def rhs_test(u, dX, dt, wenoSolver, dgSolver):

    N = wenoSolver.N
    NV = wenoSolver.NV
    NDIM = wenoSolver.NDIM

    wh = wenoSolver.solve(u)

    if NDIM == 1:
        Q = wh[0]
    elif NDIM == 2:
        Q = wh[0, 0]

    Q_py = array([Q] * N).reshape([N**(NDIM + 1), NV])
    Q_cp = Q_py[:, :NV]

    w = Q.reshape([N**NDIM, NV])
    Ww_py = dot(dgSolver.DG_W, w)
    Ww_cp = Ww_py[:, :NV]

    rhs_py = dgSolver.rhs(Q_py, Ww_py, dt, dX)

    if NDIM == 1:
        rhs_cp = GPRpy.solvers.dg.rhs1(Q_cp, Ww_cp, dt, dX[0], dgSolver.pars)
    else:
        rhs_cp = GPRpy.solvers.dg.rhs2(Q_cp, Ww_cp, dt, dX[0], dX[1],
                                       dgSolver.pars)

    print("RHS   ", check(rhs_cp, rhs_py))
    return rhs_cp, rhs_py
Example #3
0
def obj_test(u, dX, dt, wenoSolver, dgSolver):

    N = wenoSolver.N
    NV = wenoSolver.NV
    NDIM = wenoSolver.NDIM

    nx, ny = u.shape[:2]
    wh = wenoSolver.solve(u)

    if NDIM == 1:
        Q = wh[int(nx / 2)]
    elif NDIM == 2:
        Q = wh[int(nx / 2), int(ny / 2)]

    Q_py = array([Q] * N).reshape([N**(NDIM + 1), NV])
    Q_cp = Q_py[:, :NV]

    Ww_py = rand(N**(NDIM + 1), NV)
    Ww_py[:, -1] = 0
    Ww_cp = Ww_py[:, :NV]

    rhs_py = dgSolver.rhs(Q_py, Ww_py, dt, dX)

    if NDIM == 1:
        obj_cp = GPRpy.solvers.dg.obj1(Q_cp.ravel(), Ww_cp, dt, dX[0],
                                       dgSolver.pars)
    else:
        obj_cp = GPRpy.solvers.dg.obj2(Q_cp.ravel(), Ww_cp, dt, dX[0], dX[1],
                                       dgSolver.pars)

    obj_cp = obj_cp.reshape([N**(NDIM + 1), NV])
    obj_py = rhs_py - dot(dgSolver.DG_U, Q_py)

    print("obj   ", check(obj_cp, obj_py))
    return obj_cp, obj_py
Example #4
0
def lgmres_test():
    A = rand(30, 30)
    b = rand(30)
    lgmres_cp = GPRpy.scipy.lgmres_wrapper(A, b)
    lgmres_py = lgmres(A, b)[0]
    print("LGMRES", check(lgmres_cp, lgmres_py))
    return lgmres_cp, lgmres_py
Example #5
0
def ode_test(dt, MP):
    ode_py = generate_vector(MP)
    ode_cp = ode_py.copy()
    GPRpy.solvers.split.ode_launcher(ode_cp, dt, MP)
    ode_solver_cons(ode_py, dt, MP)

    print("ODEs  ", check(ode_cp, ode_py))
    return ode_cp, ode_py
Example #6
0
def M_test(d, MP):

    Q = generate_vector(MP)
    M_cp = GPRpy.system.system_matrix(Q, d, MP)
    M_py = M_cons(Q, d, MP)

    print("M     ", check(M_cp, M_py))
    return M_cp, M_py
Example #7
0
def F_test(d, MP):

    Q = generate_vector(MP)
    NV = len(Q)

    F_cp = zeros(NV)
    GPRpy.system.flux(F_cp, Q, d, MP)
    F_py = F_cons(Q, d, MP)

    print("F     ", check(F_cp, F_py))
    return F_cp, F_py
Example #8
0
def S_test(d, MP):

    Q = generate_vector(MP)
    NV = len(Q)

    S_cp = zeros(NV)
    GPRpy.system.source(S_cp, Q, MP)
    S_py = S_cons(Q, MP)

    print("S     ", check(S_cp, S_py))
    return S_cp, S_py
Example #9
0
def D_OSH_test(d, fvSolver):

    MP = fvSolver.pars

    Q1 = generate_vector(MP)
    Q2 = generate_vector(MP)

    D_OSH_cp = GPRpy.solvers.fv.D_OSH(Q1, Q2, d, MP)
    D_OSH_py = D_OSH(fvSolver, Q1, Q2, d)

    print("D_OSH ", check(D_OSH_cp, D_OSH_py))
    return D_OSH_cp, D_OSH_py
Example #10
0
def Bint_test(d, fvSolver):

    MP = fvSolver.pars

    Q1 = generate_vector(MP)
    Q2 = generate_vector(MP)

    Bint_cp = GPRpy.solvers.fv.Bint(Q1, Q2, d, MP)
    Bint_py = B_INT(fvSolver, Q1, Q2, d)

    print("Bint  ", check(Bint_cp, Bint_py))
    return Bint_cp, Bint_py
Example #11
0
def TAT_test(d, MP):

    Q = generate_vector(MP)
    P = State(Q, MP)

    Ξ1 = Xi1(P, d, MP)
    Ξ2 = Xi2(P, d, MP)
    TAT_py = dot(Ξ1, Ξ2)
    TAT_cp = GPRpy.system.thermo_acoustic_tensor(Q, d, MP)

    print("TAT   ", check(TAT_cp, TAT_py))
    return TAT_cp, TAT_py
Example #12
0
def midstepper_test(u, dX, dt, wenoSolver, splitSolver):

    mid_py = wenoSolver.solve(u)
    mid_cp = mid_py.copy().ravel()

    splitSolver.weno_midstepper(mid_py, dt, dX)

    ncell = prod(mid_py.shape[:u.ndim - 1])
    GPRpy.solvers.split.midstepper(mid_cp, dt, array(dX), splitSolver.pars,
                                   ones(ncell, dtype=bool))

    mid_cp = mid_cp.reshape(mid_py.shape)
    print("Step  ", check(mid_cp, mid_py))
    return mid_cp, mid_py
Example #13
0
def B_test(d, MP):

    Q = generate_vector(MP)
    NV = len(Q)
    x = rand(NV)

    Bx_cp = zeros(NV)
    Bx_py = zeros(NV)
    GPRpy.system.Bdot(Bx_cp, Q, x, d, MP)
    B_py = B_cons(Q, d, MP)
    Bx_py = dot(B_py, x)

    print("Bdot  ", check(Bx_cp, Bx_py))
    return Bx_cp, Bx_py
Example #14
0
def weno_test(wenoSolver):

    N = wenoSolver.N
    NV = wenoSolver.NV
    NDIM = wenoSolver.NDIM

    nX = 20 * ones(NDIM, dtype=int32)

    uBCpy = rand(*nX + 2 * N, NV)
    uBCcp = uBCpy.ravel()

    wh_py = wenoSolver.solve(uBCpy)

    wh_cp = zeros(prod(nX + 2) * N**NDIM * NV)
    GPRpy.solvers.weno.weno_launcher(wh_cp, uBCcp, nX)
    wh_cp = wh_cp.reshape(wh_py.shape)

    print("WENO  ", check(wh_cp, wh_py))
    return wh_cp, wh_py
Example #15
0
def FV_test(qh_py, dX, dt, fvSolver):

    SOURCES = fvSolver.S is not None
    TIME = fvSolver.time_rec
    FLUX = convert_fluxes[fvSolver.D_FUN]
    NDIM = fvSolver.NDIM
    MP = fvSolver.pars

    nX = array(qh_py.shape[:NDIM], dtype=int32)
    ncell = prod(nX)
    mask = ones(ncell, dtype=bool)

    FV_py = fvSolver.solve(qh_py, dt, dX)

    FV_cp = zeros(FV_py.size)
    GPRpy.solvers.fv.fv_launcher(FV_cp, qh_py.ravel(), nX - 2, dt, array(dX),
                                 SOURCES, TIME, FLUX, MP, mask)

    FV_cp = FV_cp.reshape(FV_py.shape)
    print("FV    ", check(FV_cp, FV_py))
    return FV_cp, FV_py
Example #16
0
def dg_test(u, dX, dt, wenoSolver, dgSolver):

    ndim = u.ndim - 1
    stiff_guess = dgSolver.initial_guess == stiff_initial_guess

    N = wenoSolver.N

    wh_py = wenoSolver.solve(u)
    wh_cp = wh_py.ravel()

    qh_py = dgSolver.solve(wh_py, dt, dX)

    qh_cp = zeros(len(wh_cp) * N)

    ncell = prod(wh_py.shape[:ndim])
    mask = ones(ncell, dtype=bool)
    GPRpy.solvers.dg.predictor(qh_cp, wh_cp, dt, array(dX), dgSolver.stiff,
                               stiff_guess, dgSolver.pars, mask)
    qh_cp = qh_cp.reshape(qh_py.shape)

    print("DG    ", check(qh_cp, qh_py))
    return qh_cp, qh_py
Example #17
0
def FVi_test(qh_py, dX, dt, fvSolver):

    SOURCES = fvSolver.S is not None
    TIME = fvSolver.time_rec
    NV = fvSolver.NV
    NDIM = fvSolver.NDIM
    MP = fvSolver.pars
    FLUX = convert_fluxes[fvSolver.D_FUN]
    ENDVALS = fvSolver.ENDVALS
    mask = None

    if not SOURCES:
        shape = qh_py.shape
        newShape = shape[:NDIM] + (1,) + shape[NDIM:]
        qh_py = qh_py.reshape(newShape)

    qEnd = endpoints(qh_py, NDIM, ENDVALS)

    nX = array(qh_py.shape[:NDIM])
    ncell = prod(nX)
    mask = ones(ncell, dtype=bool)

    FVi_py = zeros(list(nX - 2) + [NV])
    FVi_cp = zeros(FVi_py.size)

    if NDIM == 1:
        GPRpy.solvers.fv.interfs1(FVi_cp, qh_py.ravel(), nX[0] - 2, dt, dX[0],
                                  TIME, FLUX, MP, mask)

    elif NDIM == 2:
        GPRpy.solvers.fv.interfs2(FVi_cp, qh_py.ravel(), nX[0] - 2, nX[1] - 2,
                                  dt, dX[0], dX[1], TIME, FLUX, MP, mask)

    fvSolver.interfaces(FVi_py, qEnd, dX, mask)
    FVi_py *= dt

    FVi_cp = FVi_cp.reshape(FVi_py.shape)
    print("FVi   ", check(FVi_cp, FVi_py))
    return FVi_cp, FVi_py
Example #18
0
def newton_krylov_test(u, dt, dX, wenoSolver, dgSolver):

    with catch_warnings():

        simplefilter("ignore")

        N = wenoSolver.N
        NV = wenoSolver.NV
        NDIM = wenoSolver.NDIM

        NT = N**(NDIM + 1)
        nx, ny = u.shape[:2]

        wh = wenoSolver.solve(u)

        if NDIM == 1:
            w = wh[int(nx / 2)].reshape([N**NDIM, NV])
        elif NDIM == 2:
            w = wh[int(nx / 2), int(ny / 2)].reshape([N**NDIM, NV])
        Ww = dot(dgSolver.DG_W, w)

        q = dgSolver.initial_guess(dgSolver, w, dt, dX)

        def obj(X):
            return dot(dgSolver.DG_U, X) - dgSolver.rhs(X, Ww, dt, dX)

        def obj_cp(X):
            X2 = X.reshape([NT, NV])
            ret = obj(X2)
            return ret.ravel()

        nk_cp = GPRpy.scipy.newton_krylov(obj_cp,
                                          q.copy().ravel(),
                                          f_tol=dgSolver.tol)
        nk_py = newton_krylov(obj, q, f_tol=dgSolver.tol).ravel()
        print("N-K   ", check(nk_cp, nk_py))
        return nk_cp, nk_py