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Loop: Check for symmetry boundaries in outermost interior loops #300

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Loop: Check for symmetry boundaries in outermost interior loops #300

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821683e
Loop: Check symmetry boundaries in outermost_int loops
chcheng3 Jul 29, 2024
e0ea421
TestLoopX: Apply periodic and reflection symmetry in test case
chcheng3 Jul 29, 2024
e14cd1a
Merge remote-tracking branch 'upstream/main' into pr_newradx_fix
chcheng3 Oct 22, 2024
a3b4594
Merge pull request #1 from chcheng3/pr_newradx_fix
chcheng3 Oct 22, 2024
afdd439
CarpetX: Include driver.hxx in driver.hxx
chcheng3 Oct 30, 2024
62a7d16
TestLoopX: Use driver.hxx from CarpetX via USES INCLUDE syntax
chcheng3 Oct 30, 2024
c915516
TestLoopX: Restore blocking_factor to default and resize test domain
chcheng3 Oct 30, 2024
bb42c56
Loop: Add description of additional argument for loop_outermost_int
chcheng3 Oct 31, 2024
50af365
Merge branch 'EinsteinToolkit:main' into main
chcheng3 Nov 5, 2024
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10 changes: 7 additions & 3 deletions Loop/src/loop.hxx
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Original file line number Diff line number Diff line change
Expand Up @@ -541,6 +541,7 @@ public:
template <int CI, int CJ, int CK, int VS = 1, int N = 1, typename F>
inline CCTK_ATTRIBUTE_ALWAYS_INLINE void
loop_outermost_int(const vect<int, dim> &group_nghostzones,
const vect<vect<bool, dim>, 2> &is_sym_bnd,
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I'd document what is_sym_bnd[f][d] stands for. Does this order (f then d) match what is used eg in cctk_bbox (see https://www.einsteintoolkit.org/usersguide/UsersGuide.html#x1-98000C1.6.2). Looking at the Cactus example it does seem to be different since the Cactus code uses:

An array of 2cctk_dim integers (in the order [dim_0^{min}, dim_0^{max}, dim_1^{min}, dim_1^{max}, ... ]), ...

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@chcheng3 chcheng3 Oct 31, 2024 •
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The is_sym_bnd array follows the layout of the symmetry array from driver.hxx, which seems to be arranged in a different order from what Cactus does:

CarpetX/CarpetX/src/driver.hxx

Line 211 in a941c33

std::array<std::array<symmetry_t, dim>, 2> symmetries;

So the patch here is consistent with CarpetX, but not Cactus, which might be confusing.

const F &f) const {
// boundary_box sets bnd_min and bnd_max
vect<int, dim> bnd_min, bnd_max;
Expand Down Expand Up @@ -595,9 +596,12 @@ public:
// True when point is on left/right boundary,
// and vector is not parallel to a {face,corner,edge}
// In either of the 3 directions
if ((ni != 0 && bbox[ni < 0 ? 0 : 1][0]) ||
(nj != 0 && bbox[nj < 0 ? 0 : 1][1]) ||
(nk != 0 && bbox[nk < 0 ? 0 : 1][2])) {
if ((ni != 0 && bbox[ni < 0 ? 0 : 1][0] &&
!is_sym_bnd[ni < 0 ? 0 : 1][0]) ||
(nj != 0 && bbox[nj < 0 ? 0 : 1][1] &&
!is_sym_bnd[nj < 0 ? 0 : 1][1]) ||
(nk != 0 && bbox[nk < 0 ? 0 : 1][2] &&
!is_sym_bnd[nk < 0 ? 0 : 1][2])) {

const vect<int, dim> inormal{ni, nj, nk}; // normal vector

Expand Down
10 changes: 7 additions & 3 deletions Loop/src/loop_device.hxx
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Expand Up @@ -275,6 +275,7 @@ public:
int NT = AMREX_GPU_MAX_THREADS, typename F>
inline CCTK_ATTRIBUTE_ALWAYS_INLINE void
loop_outermost_int_device(const vect<int, dim> &group_nghostzones,
const vect<vect<bool, dim>, 2> &is_sym_bnd,
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same comment as above.

const F &f) const {
// boundary_box sets bnd_min and bnd_max
vect<int, dim> bnd_min, bnd_max;
Expand Down Expand Up @@ -329,9 +330,12 @@ public:
// True when point is on left/right boundary,
// and vector is not parallel to a {face,corner,edge}
// In either of the 3 directions
if ((ni != 0 && bbox[ni < 0 ? 0 : 1][0]) ||
(nj != 0 && bbox[nj < 0 ? 0 : 1][1]) ||
(nk != 0 && bbox[nk < 0 ? 0 : 1][2])) {
if ((ni != 0 && bbox[ni < 0 ? 0 : 1][0] &&
!is_sym_bnd[ni < 0 ? 0 : 1][0]) ||
(nj != 0 && bbox[nj < 0 ? 0 : 1][1] &&
!is_sym_bnd[nj < 0 ? 0 : 1][1]) ||
(nk != 0 && bbox[nk < 0 ? 0 : 1][2] &&
!is_sym_bnd[nk < 0 ? 0 : 1][2])) {

const vect<int, dim> inormal{ni, nj, nk}; // normal vector

Expand Down
18 changes: 16 additions & 2 deletions TestLoopX/src/testloop.cxx
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
#include <cctk.h>
#include "CarpetX/CarpetX/src/driver.hxx"
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#include <cctk_Arguments.h>
#include <cctk_Parameters.h>
#include <loop.hxx>
Expand Down Expand Up @@ -27,15 +28,28 @@ extern "C" void TestLoopX_OutermostInterior(CCTK_ARGUMENTS) {
DECLARE_CCTK_ARGUMENTSX_TestLoopX_OutermostInterior;
DECLARE_CCTK_PARAMETERS;

const auto symmetries = CarpetX::ghext->patchdata.at(cctk_patch).symmetries;
const vect<vect<bool, Loop::dim>, 2> is_sym_bnd {
{
symmetries[0][0] != CarpetX::symmetry_t::none,
symmetries[0][1] != CarpetX::symmetry_t::none,
symmetries[0][2] != CarpetX::symmetry_t::none
},
{
symmetries[1][0] != CarpetX::symmetry_t::none,
symmetries[1][1] != CarpetX::symmetry_t::none,
symmetries[1][2] != CarpetX::symmetry_t::none
}
};
grid.loop_outermost_int<0, 0, 0>(
grid.nghostzones,
grid.nghostzones, is_sym_bnd,
[=] CCTK_DEVICE CCTK_HOST(const PointDesc &p)
CCTK_ATTRIBUTE_ALWAYS_INLINE {
testloop_gf(p.I) += 10.0;
});

grid.loop_outermost_int_device<0, 0, 0>(
grid.nghostzones,
grid.nghostzones, is_sym_bnd,
[=] CCTK_DEVICE CCTK_HOST(const PointDesc &p)
CCTK_ATTRIBUTE_ALWAYS_INLINE {
testloop_gf(p.I) += 1.0;
Expand Down
28 changes: 24 additions & 4 deletions TestLoopX/test/testloopx_outermost_interior.par
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Original file line number Diff line number Diff line change
Expand Up @@ -14,19 +14,39 @@ CarpetX::poison_undefined_values = "yes"

CarpetX::xmin = -10
CarpetX::ymin = -10
CarpetX::zmin = -10
CarpetX::zmin = 0
CarpetX::xmax = +10
CarpetX::ymax = +10
CarpetX::zmax = +10

CarpetX::blocking_factor_x = 2
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CarpetX::blocking_factor_y = 2
CarpetX::blocking_factor_z = 2

CarpetX::boundary_x = "none"
CarpetX::boundary_y = "dirichlet"
CarpetX::boundary_z = "none"

CarpetX::boundary_upper_x = "none"
CarpetX::boundary_upper_y = "dirichlet"
CarpetX::boundary_upper_z = "dirichlet"

CarpetX::reflection_x = "no"
CarpetX::reflection_y = "no"
CarpetX::reflection_z = "yes"

CarpetX::reflection_upper_x = "no"
CarpetX::reflection_upper_y = "no"
CarpetX::reflection_upper_z = "no"

Driver::periodic = "yes"
Driver::periodic_x = "yes"
Driver::periodic_y = "yes"
Driver::periodic_z = "yes"
Driver::periodic_y = "no"
Driver::periodic_z = "no"

CarpetX::ncells_x = 40
CarpetX::ncells_y = 40
CarpetX::ncells_z = 40
CarpetX::ncells_z = 20

CarpetX::max_num_levels = 1
CarpetX::regrid_every = 1
Expand Down
94 changes: 47 additions & 47 deletions TestLoopX/test/testloopx_outermost_interior/testloopx-testloop_gf.it000000.x.tsv
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Original file line number Diff line number Diff line change
@@ -1,48 +1,48 @@
# 1:iteration 2:time 3:patch 4:level 5:i 6:j 7:k 8:x 9:y 10:z 11:testloop_gf
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