bspline working ok?
This commit is contained in:
Anton Ljungdahl
parent
ed31ba62ef
commit
dd89a7b6de
Binary file not shown.
11
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304
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"contents": "#include <stdlib.h>\n\n// ---\n// Header includes\n#include \"base/base_inc.h\"\n#include \"os/os_inc.h\"\n\n\n// CUDA headers\n#include \"kernels.h\"\n\n// ---\n// .C includes\n#include \"base/base_inc.c\"\n#include \"os/os_inc.c\"\n#include \"os/os_entry_point.c\"\n\n\n#define grid_file_path_bin \"D:\\\\dev\\\\eigsol_gpu\\\\out\\\\grid.bin\"\n#define grid_file_path \"D:\\\\dev\\\\eigsol_gpu\\\\out\\\\grid.dat\"\n\nglobal U32 enable_logging = 1;\n\n// Complex number with double precision\ntypedef struct Z64 Z64;\nstruct Z64\n{\n F64 re;\n F64 im;\n};\n\ntypedef struct Grid Grid;\nstruct Grid \n{\n F64 start;\n F64 end;\n U32 num_steps;\n F64 *points;\n};\n\n\ntypedef struct BSplineCtx BSplineCtx;\nstruct BSplineCtx \n{\n U32 order;\n U32 num_knotpoints;\n U32 num_bsplines;\n U32 num_phys_points;\n};\n\n\n\n//~ Globals\nglobal BSplineCtx bspline_ctx = {0};\n\n//~ Functions\n\nfunction inline void\nlogger_debug(String8 msg)\n{\n OutputDebugString(msg.str);\n}\n\n#define LOG(msg) if(enable_logging) { logger_debug(msg) };\n\n\nfunction void\nwrite_array_binary_F64(String8 path_to_file, F64 *values, U32 array_size) \n{\n OS_Handle file_handle = OS_file_open(OS_AccessFlag_Write | OS_AccessFlag_CreateNew, \n path_to_file);\n { \n ArenaTemp scratch = scratch_get(0, 0);\n String8List list = {0};\n String8 temp = {0};\n temp.str = (U8*)values;\n temp.size = sizeof(F64)*array_size;\n str8_list_push(scratch.arena, &list, temp);\n OS_file_write(scratch.arena, file_handle, 0, list, 0);\n \n String8List log_list = {0};\n str8_list_push(scratch.arena, &log_list, str8_lit(\"Wrote binary array data to\"));\n str8_list_push(scratch.arena, &log_list, path_to_file);\n StringJoin join = {0};\n join.sep = str8_lit(\" \");\n join.post = str8_lit(\"\\n\");\n String8 log_msg = str8_list_join(scratch.arena, log_list, &join);\n OutputDebugString(log_msg.str);\n }\n OS_file_close(file_handle);\n}\n\nfunction void\nwrite_array_F64(String8 path_to_file, F64 *values, U32 array_size, char* fmt) \n{\n OS_Handle file_handle = OS_file_open(OS_AccessFlag_Write | OS_AccessFlag_CreateNew, \n path_to_file);\n {\n ArenaTemp scratch = scratch_get(0, 0);\n String8List list = {0};\n for(U32 i = 0; i < array_size; i++) \n {\n str8_list_pushf(scratch.arena, &list, fmt, values[i]);\n }\n OS_file_write(scratch.arena, file_handle, 0, list, 0);\n \n String8List log_list = {0};\n str8_list_push(scratch.arena, &log_list, str8_lit(\"Wrote array to\"));\n str8_list_push(scratch.arena, &log_list, path_to_file);\n StringJoin join = {0};\n join.sep = str8_lit(\" \");\n join.post = str8_lit(\"\\n\");\n String8 log_msg = str8_list_join(scratch.arena, log_list, &join);\n OutputDebugString(log_msg.str);\n }\n OS_file_close(file_handle);\n \n}\n\n\n\nfunction\nvoid EntryPoint() \n{\n OS_InitReceipt os_receipt = OS_init();\n OS_InitGfxReceipt os_gfx_receipt = OS_gfx_init(os_receipt);\n\n Arena *arena = m_make_arena();\n\n Grid grid = {0};\n grid.start = 0.0;\n grid.end = 10.0;\n grid.num_steps = 1000;\n \n grid.points = PushArrayZero(arena, F64, grid.num_steps);\n F64 step_size = (grid.end-grid.start)/(F64)grid.num_steps;\n grid.points[0] = grid.start;\n grid.points[grid.num_steps-1] = grid.end;\n for(U32 i = 1; i < grid.num_steps-1; i++)\n {\n grid.points[i] = grid.points[i-1] + step_size;\n }\n\n write_array_binary_F64(str8_lit(grid_file_path_bin), grid.points, grid.num_steps);\n write_array_F64(str8_lit(grid_file_path), grid.points, grid.num_steps, \"%13.6e\\n\");\n \n // Create bsplines\n U32 k = 4;\n U32 N = 14;\n bspline_ctx.order = k; \n bspline_ctx.num_knotpoints = N; \n U32 num_bsplines = N-k;\n U32 num_phys_points = N-2*k+2; // Remove k points at each end, and then add back the first and last points.\n\n\n\n}\n\n\n",
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1000
out/Bspline3.dat
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out/Bspline3.dat
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File diff suppressed because it is too large
Load Diff
35
out/knotpoints.dat
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out/knotpoints.dat
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0.000000e+00
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0.000000e+00
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0.000000e+00
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0.000000e+00
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3.571429e-01
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7.142857e-01
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1.071429e+00
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1.428571e+00
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1.785714e+00
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2.142857e+00
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2.500000e+00
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2.857143e+00
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3.214286e+00
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3.571429e+00
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3.928571e+00
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4.285714e+00
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4.642857e+00
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5.000000e+00
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5.357143e+00
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6.071429e+00
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1.000000e+01
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1.000000e+01
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File diff suppressed because one or more lines are too long
153
src/main.c
153
src/main.c
@ -18,22 +18,57 @@
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#define grid_file_path_bin "D:\\dev\\eigsol_gpu\\out\\grid.bin"
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#define grid_file_path "D:\\dev\\eigsol_gpu\\out\\grid.dat"
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#define knotpoints_file_path "D:\\dev\\eigsol_gpu\\out\\knotpoints.dat"
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global U32 enable_logging = 1;
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// Complex number with double precision
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typedef struct Z64 Z64;
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struct Z64
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{
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F64 re;
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F64 im;
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};
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typedef struct Grid Grid;
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struct Grid {
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struct Grid
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{
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F64 start;
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F64 end;
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U32 num_steps;
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F64 *points;
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};
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typedef struct BSplineCtx BSplineCtx;
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struct BSplineCtx {
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struct BSplineCtx
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{
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Arena* arena;
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U32 order;
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F64 *knotpoints;
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U32 num_knotpoints;
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U32 num_bsplines;
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U32 num_phys_points;
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};
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void write_array_binary_F64(String8 path_to_file, F64 *values, U32 array_size)
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//~ Globals
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global BSplineCtx g_bspline_ctx = {0};
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//~ Functions
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function inline void
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logger_debug(String8 msg)
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{
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OutputDebugString(msg.str);
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}
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#define LOG(msg) if(enable_logging) { logger_debug(msg) };
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function void
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write_array_binary_F64(String8 path_to_file, F64 *values, U32 array_size)
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{
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OS_Handle file_handle = OS_file_open(OS_AccessFlag_Write | OS_AccessFlag_CreateNew,
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path_to_file);
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@ -45,12 +80,21 @@ void write_array_binary_F64(String8 path_to_file, F64 *values, U32 array_size)
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temp.size = sizeof(F64)*array_size;
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str8_list_push(scratch.arena, &list, temp);
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OS_file_write(scratch.arena, file_handle, 0, list, 0);
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String8List log_list = {0};
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str8_list_push(scratch.arena, &log_list, str8_lit("Wrote binary array data to"));
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str8_list_push(scratch.arena, &log_list, path_to_file);
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StringJoin join = {0};
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join.sep = str8_lit(" ");
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join.post = str8_lit("\n");
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String8 log_msg = str8_list_join(scratch.arena, log_list, &join);
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OutputDebugString(log_msg.str);
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}
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OS_file_close(file_handle);
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}
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void write_array_F64(String8 path_to_file, F64 *values, U32 array_size, char* fmt)
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function void
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write_array_F64(String8 path_to_file, F64 *values, U32 array_size, char* fmt)
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{
|
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OS_Handle file_handle = OS_file_open(OS_AccessFlag_Write | OS_AccessFlag_CreateNew,
|
||||
path_to_file);
|
||||
@ -62,13 +106,56 @@ void write_array_F64(String8 path_to_file, F64 *values, U32 array_size, char* fm
|
||||
str8_list_pushf(scratch.arena, &list, fmt, values[i]);
|
||||
}
|
||||
OS_file_write(scratch.arena, file_handle, 0, list, 0);
|
||||
|
||||
String8List log_list = {0};
|
||||
str8_list_push(scratch.arena, &log_list, str8_lit("Wrote array to"));
|
||||
str8_list_push(scratch.arena, &log_list, path_to_file);
|
||||
StringJoin join = {0};
|
||||
join.sep = str8_lit(" ");
|
||||
join.post = str8_lit("\n");
|
||||
String8 log_msg = str8_list_join(scratch.arena, log_list, &join);
|
||||
OutputDebugString(log_msg.str);
|
||||
}
|
||||
OS_file_close(file_handle);
|
||||
|
||||
}
|
||||
|
||||
function F64 bspline_recursion(F64 x, U32 k, U32 i)
|
||||
{
|
||||
F64 *t = g_bspline_ctx.knotpoints;
|
||||
|
||||
if(k == 1)
|
||||
{
|
||||
if(i < g_bspline_ctx.num_bsplines && x >= t[i] && x < t[i+1])
|
||||
{
|
||||
return 1.0;
|
||||
} else {
|
||||
return 0.0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
F64 term1 = (x - t[i])/(t[i+k-1]-t[i])*bspline_recursion(x, k-1, i);
|
||||
F64 term2 = (t[i+k]-x)/(t[i+k]-t[i+1])*bspline_recursion(x, k-1, i+1);
|
||||
|
||||
return term1 + term2;
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
void EntryPoint() {
|
||||
function F64 get_bspline_F64(F64 x_coord, U32 index)
|
||||
{
|
||||
U32 k = g_bspline_ctx.order;
|
||||
F64 out = bspline_recursion(x_coord, k, index);
|
||||
return out;
|
||||
}
|
||||
|
||||
|
||||
function
|
||||
void EntryPoint()
|
||||
{
|
||||
OS_InitReceipt os_receipt = OS_init();
|
||||
OS_InitGfxReceipt os_gfx_receipt = OS_gfx_init(os_receipt);
|
||||
|
||||
@ -78,20 +165,68 @@ void EntryPoint() {
|
||||
grid.start = 0.0;
|
||||
grid.end = 10.0;
|
||||
grid.num_steps = 1000;
|
||||
|
||||
|
||||
grid.points = PushArrayZero(arena, F64, grid.num_steps);
|
||||
F64 step_size = (grid.end-grid.start)/(F64)grid.num_steps;
|
||||
grid.points[0] = grid.start;
|
||||
grid.points[grid.num_steps-1] = grid.end;
|
||||
for(U32 i = 1; i < grid.num_steps-1; i++) {
|
||||
for(U32 i = 1; i < grid.num_steps-1; i++)
|
||||
{
|
||||
grid.points[i] = grid.points[i-1] + step_size;
|
||||
}
|
||||
|
||||
write_array_binary_F64(str8_lit(grid_file_path_bin), grid.points, grid.num_steps);
|
||||
write_array_F64(str8_lit(grid_file_path), grid.points, grid.num_steps, "%13.6e\n");
|
||||
|
||||
|
||||
// Create knotpoint sequence.
|
||||
U32 k = 4;
|
||||
U32 N = 35;
|
||||
g_bspline_ctx.order = k;
|
||||
g_bspline_ctx.num_knotpoints = N;
|
||||
g_bspline_ctx.num_bsplines = N-k;
|
||||
g_bspline_ctx.num_phys_points = N-(2*k)+2; // Remove k points at each end, and then add back the first and last points.
|
||||
g_bspline_ctx.arena = arena;
|
||||
g_bspline_ctx.knotpoints = (F64*)PushArrayZero(arena, F64, g_bspline_ctx.num_knotpoints);
|
||||
// Set up physical points;
|
||||
F64 delta = (grid.end-grid.start)/(g_bspline_ctx.num_phys_points-1);
|
||||
// Set ghost points including first physical
|
||||
U32 phys_point_index = g_bspline_ctx.num_phys_points + k-1;
|
||||
for(U32 i = 0; i < k; i++)
|
||||
{
|
||||
g_bspline_ctx.knotpoints[i] = grid.start;
|
||||
}
|
||||
for(U32 i = k; i < phys_point_index; i++)
|
||||
{
|
||||
g_bspline_ctx.knotpoints[i] = g_bspline_ctx.knotpoints[i-1] + delta;
|
||||
}
|
||||
// Set the last points
|
||||
F64 last_physical = grid.end;
|
||||
for(U32 i = phys_point_index; i < g_bspline_ctx.num_knotpoints; i++)
|
||||
{
|
||||
g_bspline_ctx.knotpoints[i] = last_physical;
|
||||
}
|
||||
|
||||
write_array_F64(str8_lit(knotpoints_file_path), g_bspline_ctx.knotpoints, g_bspline_ctx.num_knotpoints, "%13.6e\n");
|
||||
|
||||
|
||||
String8 Bspline3_fn = str8_lit("D:\\dev\\eigsol_gpu\\out\\Bspline3.dat");
|
||||
F64 *Bspline3 = (F64 *)PushArrayZero(arena, F64, grid.num_steps);
|
||||
for(U32 i = 0; i < grid.num_steps; i++)
|
||||
{
|
||||
Bspline3[i] = get_bspline_F64(grid.points[i], 3);
|
||||
}
|
||||
|
||||
write_array_F64(Bspline3_fn, Bspline3, grid.num_steps, "%13.6e\n");
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
BIN
timeBuild.ctm
BIN
timeBuild.ctm
Binary file not shown.
Loading…
Reference in New Issue
Block a user