Example #1
0
    def __init__(self, U, params):

        covariant_shift.__init__(self, U, params)

        Nc = U[0].otype.Nc
        otype = g.ot_vector_spin_color(4, Nc)
        grid = U[0].grid
        if "mass" in params:
            assert "kappa" not in params
            self.kappa = 1.0 / (params["mass"] + 4.0) / 2.0
        else:
            self.kappa = params["kappa"]

        self.Meooe = g.matrix_operator(lambda dst, src: self._Meooe(dst, src),
                                       otype=otype,
                                       grid=grid)
        self.Mooee = g.matrix_operator(lambda dst, src: self._Mooee(dst, src),
                                       otype=otype,
                                       grid=grid)
        matrix_operator.__init__(self,
                                 lambda dst, src: self._M(dst, src),
                                 otype=otype,
                                 grid=grid)
        self.G5M = g.matrix_operator(lambda dst, src: self._G5M(dst, src),
                                     otype=otype,
                                     grid=grid)
Example #2
0
def zmobius(U, params):
    params = copy.deepcopy(params)  # save current parameters
    params["Ls"] = len(params["omega"])

    return zmobius_class_operator("zmobius",
                                  U,
                                  params,
                                  otype=gpt.ot_vector_spin_color(4, 3))
Example #3
0
def wilson_clover(U, params):
    params = copy.deepcopy(params)  # save current parameters
    if params["kappa"] is not None:
        assert params["mass"] is None
        params["mass"] = 1.0 / params["kappa"] / 2.0 - 4.0
        del params["kappa"]
    if params["use_legacy"]:
        assert params["boundary_phases"][-1] != 0.0  # only new op supports open bc
    if params["boundary_phases"][-1] != 0.0:
        assert params["cF"] == 1.0  # forbid usage of cF without open bc
    if params["csw_r"] == 0.0 and params["csw_t"] == 0.0:
        # for now Grid does not have MooeeDeriv for clover term
        operator_class = wilson_class_operator
    else:
        operator_class = fine_operator
    return operator_class(
        "wilson_clover", U, params, otype=gpt.ot_vector_spin_color(4, 3)
    )
Example #4
0
# produces a string without failing
g.message(
    f"Test string conversion of expression:\n{g.trace(0.5 * msc * msc - msc)}")

# left and right multiplication of different data types with scalar
mc = g.mcomplex(grid, ntest)
for dti in [cv, cm, vsc, msc, vc, mc]:
    rng.cnormal(dti)
    eps = g.norm2(mask * dti - dti * mask)
    g.message(f"Done with {dti.otype.__name__}")
    assert eps == 0.0

# test numpy versus lattice tensor multiplication
for a_type in [
        g.ot_matrix_spin_color(4, 3),
        g.ot_vector_spin_color(4, 3),
        g.ot_matrix_spin(4),
        g.ot_vector_spin(4),
        g.ot_matrix_color(3),
        g.ot_vector_color(3),
]:
    # mtab
    for e in a_type.mtab:
        if a_type.mtab[e][1] is not None:
            b_type = g.str_to_otype(e)
            a = rng.cnormal(g.lattice(grid, a_type))
            b = rng.cnormal(g.lattice(grid, b_type))
            mul_lat = g(a * b)[0, 0, 0, 0]
            mul_np = a[0, 0, 0, 0] * b[0, 0, 0, 0]
            eps2 = g.norm2(mul_lat - mul_np) / g.norm2(mul_lat)
            g.message(f"Test {a_type.__name__} * {b_type.__name__}: {eps2}")
Example #5
0
# main test loop
for precision in [g.single, g.double]:
    grid = g.grid(g.default.get_ivec("--grid", [16, 16, 16, 32], 4), precision)
    N = 100
    Nwarmup = 5
    g.message(
        f"""
Inner Product Benchmark with
    fdimensions  : {grid.fdimensions}
    precision    : {precision.__name__}
"""
    )

    # Source and destination
    for tp in [g.ot_singlet(), g.ot_vector_spin_color(4, 3), g.ot_vector_singlet(12)]:
        for n in [1, 4]:
            one = [g.lattice(grid, tp) for i in range(n)]
            two = [g.lattice(grid, tp) for i in range(n)]
            rng.cnormal([one, two])

            # Rank inner product
            nbytes = (one[0].global_bytes() + two[0].global_bytes()) * N * n * n
            for use_accelerator, compute_name, access in [
                (False, "host", access_host),
                (True, "accelerator", access_accelerator),
            ]:

                # Time
                dt = 0.0
                cgpt.timer_begin()
Example #6
0
def mobius(U, params):
    params = copy.deepcopy(params)  # save current parameters
    return mobius_class_operator("mobius",
                                 U,
                                 params,
                                 otype=gpt.ot_vector_spin_color(4, 3))
Example #7
0
    def __init__(self, U, params):

        shift_eo.__init__(self, U, boundary_phases=params["boundary_phases"])

        Nc = U[0].otype.Nc
        otype = g.ot_vector_spin_color(4, Nc)
        grid = U[0].grid
        grid_eo = grid.checkerboarded(g.redblack)
        self.F_grid = grid
        self.U_grid = grid
        self.F_grid_eo = grid_eo
        self.U_grid_eo = grid_eo

        self.vector_space_F = g.vector_space.explicit_grid_otype(self.F_grid, otype)
        self.vector_space_U = g.vector_space.explicit_grid_otype(self.U_grid, otype)
        self.vector_space_F_eo = g.vector_space.explicit_grid_otype(
            self.F_grid_eo, otype
        )

        self.src_e = g.vspincolor(grid_eo)
        self.src_o = g.vspincolor(grid_eo)
        self.dst_e = g.vspincolor(grid_eo)
        self.dst_o = g.vspincolor(grid_eo)
        self.dst_e.checkerboard(g.even)
        self.dst_o.checkerboard(g.odd)

        if params["kappa"] is not None:
            assert params["mass"] is None
            self.m0 = 1.0 / params["kappa"] / 2.0 - 4.0
        else:
            self.m0 = params["mass"]

        self.xi_0 = params["xi_0"]
        self.csw_r = params["csw_r"] / self.xi_0
        self.csw_t = params["csw_t"]
        self.nu = params["nu"]

        self.kappa = 1.0 / (2.0 * (self.m0 + 1.0 + 3.0 * self.nu / self.xi_0))

        self.open_bc = params["boundary_phases"][self.nd - 1] == 0.0
        if self.open_bc:
            assert all(
                [
                    self.xi_0 == 1.0,
                    self.nu == 1.0,
                    self.csw_r == self.csw_t,
                    "cF" in params,
                ]
            )  # open bc only for isotropic case, require cF passed
            self.cF = params["cF"]
            T = self.L[self.nd - 1]

        # compute field strength tensor
        if self.csw_r != 0.0 or self.csw_t != 0.0:
            self.clover = g.mspincolor(grid)
            self.clover[:] = 0
            I = g.identity(self.clover)
            for mu in range(self.nd):
                for nu in range(mu + 1, self.nd):
                    if mu == (self.nd - 1) or nu == (self.nd - 1):
                        cp = self.csw_t
                    else:
                        cp = self.csw_r
                    self.clover += (
                        -0.5
                        * cp
                        * g.gamma[mu, nu]
                        * I
                        * g.qcd.gauge.field_strength(U, mu, nu)
                    )

            if self.open_bc:
                # set field strength tensor to unity at the temporal boundaries
                value = -0.5 * self.csw_t
                self.clover[:, :, :, 0, :, :, :, :] = 0.0
                self.clover[:, :, :, T - 1, :, :, :, :] = 0.0
                for alpha in range(4):
                    for a in range(Nc):
                        self.clover[:, :, :, 0, alpha, alpha, a, a] = value
                        self.clover[:, :, :, T - 1, alpha, alpha, a, a] = value

                if self.cF != 1.0:
                    # add improvement coefficients next to temporal boundaries
                    value = self.cF - 1.0
                    for alpha in range(4):
                        for a in range(Nc):
                            self.clover[:, :, :, 1, alpha, alpha, a, a] += value
                            self.clover[:, :, :, T - 2, alpha, alpha, a, a] += value

            # integrate kappa into clover matrix for inversion
            self.clover += 1.0 / 2.0 * 1.0 / self.kappa * I

            self.clover_inv = g.matrix.inv(self.clover)

            self.clover_eo = {
                g.even: g.lattice(grid_eo, self.clover.otype),
                g.odd: g.lattice(grid_eo, self.clover.otype),
            }
            self.clover_inv_eo = {
                g.even: g.lattice(grid_eo, self.clover.otype),
                g.odd: g.lattice(grid_eo, self.clover.otype),
            }
            for cb in self.clover_eo:
                g.pick_checkerboard(cb, self.clover_eo[cb], self.clover)
                g.pick_checkerboard(cb, self.clover_inv_eo[cb], self.clover_inv)
        else:
            self.clover = None
            self.clover_inv = None

        self.Meooe = g.matrix_operator(
            mat=lambda dst, src: self._Meooe(dst, src),
            vector_space=self.vector_space_F_eo,
        )
        self.Mooee = g.matrix_operator(
            mat=lambda dst, src: self._Mooee(dst, src),
            inv_mat=lambda dst, src: self._MooeeInv(dst, src),
            vector_space=self.vector_space_F_eo,
        )
        self.Dhop = g.matrix_operator(
            mat=lambda dst, src: self._Dhop(dst, src), vector_space=self.vector_space_F
        )
        matrix_operator.__init__(
            self, lambda dst, src: self._M(dst, src), vector_space=self.vector_space_F
        )
        self.G5M = g.matrix_operator(
            lambda dst, src: self._G5M(dst, src), vector_space=self.vector_space_F
        )
        self.Mdiag = g.matrix_operator(
            lambda dst, src: self._Mdiag(dst, src), vector_space=self.vector_space_F
        )
        self.ImportPhysicalFermionSource = g.matrix_operator(
            lambda dst, src: g.copy(dst, src), vector_space=self.vector_space_F
        )
        self.ExportPhysicalFermionSolution = g.matrix_operator(
            lambda dst, src: g.copy(dst, src), vector_space=self.vector_space_F
        )
        self.ExportPhysicalFermionSource = g.matrix_operator(
            lambda dst, src: g.copy(dst, src), vector_space=self.vector_space_F
        )
        self.Dminus = g.matrix_operator(
            lambda dst, src: g.copy(dst, src), vector_space=self.vector_space_F
        )
Example #8
0
# main test loop
for precision in [g.single, g.double]:
    grid = g.grid(g.default.get_ivec("--grid", [16, 16, 16, 32], 4), precision)
    N = 100
    Nwarmup = 5
    g.message(
        f"""
Benchmark linear combination
    fdimensions  : {grid.fdimensions}
    precision    : {precision.__name__}
"""
    )

    # Source and destination
    for tp in [g.ot_matrix_color(3), g.ot_matrix_spin(4), g.ot_vector_spin_color(4, 3)]:
        for nbasis in [4, 8, 16]:
            basis = [g.lattice(grid, tp) for i in range(nbasis)]
            result = g.lattice(grid, tp)
            rng.cnormal(basis)

            # Typical usecase: nbasis -> 1
            Qt = np.ones((1, nbasis), np.complex128)

            # Bytes
            nbytes = (nbasis + 1) * result.global_bytes() * N

            # Time
            dt = 0.0
            for it in range(N + Nwarmup):
                if it >= Nwarmup: