Re-optimized projection
This commit is contained in:
Guilhem Lavaux
parent
60a477a4c0
commit
81f4b642e4
@ -1,12 +1,12 @@
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from cpython cimport bool
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from cython cimport view
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from cython.parallel import prange, parallel
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from openmp cimport omp_get_max_threads, omp_get_thread_num
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from libc.math cimport sin, cos, abs, floor, sqrt
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import numpy as np
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cimport numpy as npx
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cimport cython
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from copy cimport *
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from openmp cimport omp_get_max_threads, omp_get_thread_num
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ctypedef npx.float64_t DTYPE_t
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DTYPE=np.float64
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@ -298,8 +298,7 @@ cdef void INTERNAL_project_cic_no_mass(npx.ndarray[DTYPE_t, ndim=3] g,
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cdef double half_Box = 0.5*Lbox
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cdef double delta_Box = Ngrid/Lbox
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cdef int i
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cdef double a[3]
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cdef double c[3]
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cdef double a[3], c[3]
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cdef int b[3]
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cdef int do_not_put
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@ -335,10 +334,8 @@ cdef void INTERNAL_project_cic_no_mass_periodic(npx.ndarray[DTYPE_t, ndim=3] g,
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cdef double half_Box = 0.5*Lbox
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cdef double delta_Box = Ngrid/Lbox
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cdef int i
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cdef double a[3]
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cdef double c[3]
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cdef int b[3]
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cdef int b1[3]
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cdef double a[3], c[3]
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cdef int b[3], b1[3]
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cdef int do_not_put
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for i in range(x.shape[0]):
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@ -376,8 +373,7 @@ cdef void INTERNAL_project_cic_with_mass(npx.ndarray[DTYPE_t, ndim=3] g,
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cdef double half_Box = 0.5*Lbox
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cdef double delta_Box = Ngrid/Lbox
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cdef int i
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cdef double a[3]
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cdef double c[3]
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cdef double a[3], c[3]
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cdef DTYPE_t m0
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cdef int b[3]
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@ -414,10 +410,8 @@ cdef void INTERNAL_project_cic_with_mass_periodic(npx.ndarray[DTYPE_t, ndim=3] g
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cdef double half_Box = 0.5*Lbox, m0
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cdef double delta_Box = Ngrid/Lbox
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cdef int i
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cdef double a[3]
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cdef double c[3]
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cdef int b[3]
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cdef int b1[3]
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cdef double a[3], c[3]
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cdef int b[3], b1[3]
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for i in range(x.shape[0]):
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@ -538,11 +532,10 @@ cdef DTYPE_t cube_integral(DTYPE_t u[3], DTYPE_t u0[3], int r[1]) nogil:
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@cython.boundscheck(False)
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@cython.cdivision(True)
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cdef DTYPE_t cube_integral_trilin(DTYPE_t u[3], DTYPE_t u0[3], int r[1], DTYPE_t vertex_value[8], int err[1]) nogil:
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cdef DTYPE_t cube_integral_trilin(DTYPE_t u[3], DTYPE_t u0[3], int r[1], DTYPE_t vertex_value[8]) nogil:
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cdef DTYPE_t alpha_max
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cdef DTYPE_t I, tmp_a
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cdef DTYPE_t v[3]
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cdef DTYPE_t term[4]
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cdef DTYPE_t v[3], term[4]
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cdef int i, j, q
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alpha_max = 10.0 # A big number
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@ -560,13 +553,7 @@ cdef DTYPE_t cube_integral_trilin(DTYPE_t u[3], DTYPE_t u0[3], int r[1], DTYPE_t
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if tmp_a < alpha_max:
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alpha_max = tmp_a
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j = i
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# if (u0[i] < 0 or u0[i] > 1):
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# err[0] = 1
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# with gil:
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# print("Bouh! u0[%d] = %lg" % (i, u0[i]))
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# return 0
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I = compute_projection(vertex_value, u, u0, alpha_max)
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for i in xrange(3):
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@ -580,7 +567,7 @@ cdef DTYPE_t cube_integral_trilin(DTYPE_t u[3], DTYPE_t u0[3], int r[1], DTYPE_t
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@cython.boundscheck(False)
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cdef DTYPE_t integrator0(DTYPE_t[:,:,:] density,
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DTYPE_t u[3], DTYPE_t u0[3], int u_delta[3], int iu0[3], int jumper[1], int err[1]) nogil except? 0:
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DTYPE_t u[3], DTYPE_t u0[3], int u_delta[3], int iu0[3], int jumper[1]) nogil:
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cdef DTYPE_t d
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d = density[iu0[0], iu0[1], iu0[2]]
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@ -589,20 +576,15 @@ cdef DTYPE_t integrator0(DTYPE_t[:,:,:] density,
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@cython.boundscheck(False)
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cdef DTYPE_t integrator1(DTYPE_t[:,:,:] density,
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DTYPE_t u[3], DTYPE_t u0[3], int u_delta[3], int iu0[3], int jumper[1], int err[1]) nogil except? 0:
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DTYPE_t u[3], DTYPE_t u0[3], int u_delta[3], int iu0[3], int jumper[1]) nogil:
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cdef DTYPE_t vertex_value[8]
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cdef DTYPE_t d
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cdef int a[3][2]
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cdef int i
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cdef int a[3][2], i
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for i in xrange(3):
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a[i][0] = iu0[i]
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a[i][1] = iu0[i]+1
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with gil:
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assert a[i][0] >= 0
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assert a[i][1] < density.shape[i]
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vertex_value[0 + 2*0 + 4*0] = density[a[0][0], a[1][0], a[2][0]]
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vertex_value[1 + 2*0 + 4*0] = density[a[0][1], a[1][0], a[2][0]]
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vertex_value[0 + 2*1 + 4*0] = density[a[0][0], a[1][1], a[2][0]]
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@ -613,8 +595,7 @@ cdef DTYPE_t integrator1(DTYPE_t[:,:,:] density,
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vertex_value[0 + 2*1 + 4*1] = density[a[0][0], a[1][1], a[2][1]]
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vertex_value[1 + 2*1 + 4*1] = density[a[0][1], a[1][1], a[2][1]]
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# return cube_integral(u, u0, jumper)*d
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return cube_integral_trilin(u, u0, jumper, vertex_value, err)
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return cube_integral_trilin(u, u0, jumper, vertex_value)
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@ -622,15 +603,11 @@ cdef DTYPE_t integrator1(DTYPE_t[:,:,:] density,
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cdef DTYPE_t C_line_of_sight_projection(DTYPE_t[:,:,:] density,
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DTYPE_t a_u[3],
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DTYPE_t min_distance,
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DTYPE_t max_distance, DTYPE_t[:] shifter, int integrator_id, int out_err[1]) nogil except? 0:
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DTYPE_t max_distance, DTYPE_t[:] shifter, int integrator_id) nogil except? 0:
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cdef DTYPE_t u[3]
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cdef DTYPE_t ifu0[3]
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cdef DTYPE_t u0[3]
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cdef DTYPE_t utot[3]
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cdef DTYPE_t u[3], ifu0[3], u0[3], utot[3]
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cdef int u_delta[3]
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cdef int iu0[3]
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cdef int err[1]
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cdef int i
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cdef int N = density.shape[0]
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cdef int half_N = density.shape[0]/2
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@ -639,10 +616,8 @@ cdef DTYPE_t C_line_of_sight_projection(DTYPE_t[:,:,:] density,
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cdef int jumper[1]
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cdef DTYPE_t (*integrator)(DTYPE_t[:,:,:],
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DTYPE_t u[3], DTYPE_t u0[3], int u_delta[3], int iu0[3], int jumper[1], int err[1]) nogil except? 0
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DTYPE_t u[3], DTYPE_t u0[3], int u_delta[3], int iu0[3], int jumper[1]) nogil
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out_err[0] = 0
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if integrator_id == 0:
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integrator = integrator0
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else:
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@ -655,19 +630,17 @@ cdef DTYPE_t C_line_of_sight_projection(DTYPE_t[:,:,:] density,
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u0[i] = a_u[i]*min_distance
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ifu0[i] = half_N+u0[i]+shifter[i]
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if (ifu0[i] <= 0 or ifu0[i] >= N):
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with gil:
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print "BLABLA"
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return 0
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iu0[i] = int(floor(ifu0[i]))
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u0[i] = ifu0[i]-iu0[i]
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u_delta[i] = 1 if iu0[i] > 0 else -1
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# if (not ((iu0[i]>= 0) and (iu0[i] < N))):
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# out_err[0] = 1
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# return 0
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# if (not (u0[i]>=0 and u0[i]<=1)):
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# out_err[0] = 1
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# return 0
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if (not ((iu0[i]>= 0) and (iu0[i] < N))):
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with gil:
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raise RuntimeError("iu0[%d] = %d !!" % (i,iu0[i]))
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if (not (u0[i]>=0 and u0[i]<=1)):
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with gil:
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raise RuntimeError("u0[%d] = %g !" % (i,u0[i]))
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completed = 0
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if ((iu0[0] >= N) or (iu0[0] <= 0) or
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@ -678,14 +651,8 @@ cdef DTYPE_t C_line_of_sight_projection(DTYPE_t[:,:,:] density,
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I0 = 0
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jumper[0] = 0
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while completed == 0:
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err[0] = 0
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I0 += integrator(density, u, u0, u_delta, iu0, jumper, err)
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# if err[0] == 1:
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# with gil:
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# print("Bah! error!")
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# out_err[0] = 1
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# return 0
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I0 += integrator(density, u, u0, u_delta, iu0, jumper)
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if u[jumper[0]] < 0:
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iu0[jumper[0]] -= 1
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@ -718,25 +685,19 @@ def line_of_sight_projection(DTYPE_t[:,:,:] density not None,
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DTYPE_t min_distance,
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DTYPE_t max_distance, DTYPE_t[:] shifter not None, int integrator_id=0):
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cdef DTYPE_t u[3]
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cdef int out_err[1]
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cdef DTYPE_t v
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u[0] = a_u[0]
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u[1] = a_u[1]
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u[2] = a_u[2]
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out_err[0] = 0
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v = C_line_of_sight_projection(density,
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C_line_of_sight_projection(density,
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u,
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min_distance,
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max_distance, shifter, integrator_id, out_err)
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# if out_err[0] == 1:
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# raise RuntimeError("Error occured during integration")
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return v
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max_distance, shifter, integrator_id)
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cdef double _spherical_projloop(double theta, double phi, DTYPE_t[:,:,:] density,
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double min_distance, double max_distance,
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DTYPE_t[:] shifter, int integrator_id, int out_err[1]) nogil:
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DTYPE_t[:] shifter, int integrator_id) nogil:
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cdef DTYPE_t u0[3]
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stheta = sin(theta)
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@ -744,7 +705,7 @@ cdef double _spherical_projloop(double theta, double phi, DTYPE_t[:,:,:] density
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u0[1] = sin(phi)*stheta
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u0[2] = cos(theta)
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return C_line_of_sight_projection(density, u0, min_distance, max_distance, shifter, integrator_id, out_err)
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return C_line_of_sight_projection(density, u0, min_distance, max_distance, shifter, integrator_id)
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@cython.boundscheck(False)
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@ -761,9 +722,9 @@ def spherical_projection(int Nside,
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cdef DTYPE_t[:] outm
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cdef int[:] job_done
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cdef npx.ndarray[DTYPE_t, ndim=1] outm_array
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cdef long N
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cdef long N, N0
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cdef double stheta
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cdef int out_err[1]
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cdef int tid
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if shifter is None:
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shifter = view.array(shape=(3,), format=FORMAT_DTYPE, itemsize=sizeof(DTYPE_t))
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@ -777,21 +738,22 @@ def spherical_projection(int Nside,
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p = pb.ProgressBar(maxval=outm.size,widgets=[pb.Bar(), pb.ETA()]).start()
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N = omp_get_max_threads()
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N0 = outm.size
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if booster < 0:
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booster = 1000
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job_done = view.array(shape=(N,), format="i", itemsize=sizeof(int))
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job_done[:] = 0
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theta,phi = hp.pix2ang(Nside, np.arange(outm.size))
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if booster <= 0:
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booster = density.size / 100 / N
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theta,phi = hp.pix2ang(Nside, np.arange(N0))
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with nogil, parallel():
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for i in prange(N):
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if omp_get_thread_num() == 0 and progress != 0 and (i%booster) == 0:
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tid = omp_get_thread_num()
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for i in prange(N0):
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if progress != 0 and (i%booster) == 0:
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with gil:
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p.update(_mysum(job_done))
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# out_err[0] = 0
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outm[i] = _spherical_projloop(theta[i], phi[i], density_view, min_distance, max_distance, shifter, integrator_id, out_err)
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job_done[omp_get_thread_num()] = i
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outm[i] = _spherical_projloop(theta[i], phi[i], density_view, min_distance, max_distance, shifter, integrator_id)
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job_done[tid] += 1
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if progress:
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p.finish()
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@ -5,14 +5,14 @@ template<typename T, typename ProdType>
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static T project_tool(T *vertex_value, T *u, T *u0)
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{
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T ret0 = 0;
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for (int i = 0; i < 8; i++)
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for (unsigned int i = 0; i < 8; i++)
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{
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int c[3] = { i & 1, (i>>1)&1, (i>>2)&1 };
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unsigned int c[3] = { i & 1, (i>>1)&1, (i>>2)&1 };
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int epsilon[3];
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T ret = 0;
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for (int q = 0; q < 3; q++)
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epsilon[q] = (2*c[q]-1);
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epsilon[q] = 2*c[q]-1;
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for (int q = 0; q < ProdType::numProducts; q++)
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ret += ProdType::product(u, u0, epsilon, q);
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@ -27,7 +27,8 @@ static T project_tool(T *vertex_value, T *u, T *u0)
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template<typename T>
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static inline T get_u0(const T& u0, int epsilon)
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{
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return (epsilon > 0) ? u0 : (1-u0);
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return (1-epsilon)/2 + epsilon*u0;
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// return (epsilon > 0) ? u0 : (1-u0);
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}
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template<typename T>
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@ -39,7 +40,7 @@ struct ProductTerm0
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{
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T a = 1;
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for (int r = 0; r < 3; r++)
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for (unsigned int r = 0; r < 3; r++)
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a *= get_u0(u0[r], epsilon[r]);
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return a;
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}
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@ -54,14 +55,14 @@ struct ProductTerm1
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static T product(T *u, T *u0, int *epsilon, int q)
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{
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T a = 1;
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double G[3];
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T G[3];
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for (int r = 0; r < 3; r++)
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for (unsigned int r = 0; r < 3; r++)
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{
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G[r] = get_u0(u0[r], epsilon[r]);
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}
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double F[3] = { G[1]*G[2], G[0]*G[2], G[0]*G[1] };
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T F[3] = { G[1]*G[2], G[0]*G[2], G[0]*G[1] };
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return F[q] * u[q] * epsilon[q];
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}
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@ -75,14 +76,14 @@ struct ProductTerm2
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static inline T product(T *u, T *u0, int *epsilon, int q)
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{
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T a = 1;
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double G[3];
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T G[3];
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for (int r = 0; r < 3; r++)
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for (unsigned int r = 0; r < 3; r++)
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{
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G[r] = get_u0(u0[r], epsilon[r]);
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}
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double F[3] = { epsilon[1]*epsilon[2]*u[1]*u[2], epsilon[0]*epsilon[2]*u[0]*u[2], epsilon[0]*epsilon[1]*u[0]*u[1] };
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T F[3] = { epsilon[1]*epsilon[2]*u[1]*u[2], epsilon[0]*epsilon[2]*u[0]*u[2], epsilon[0]*epsilon[1]*u[0]*u[1] };
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return F[q] * G[q];
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}
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