重用缓冲区的大小和尺寸
您可以重用为矩阵缓冲区,有不同的大小和形状。在配置参数对话框,您启用这个优化选择重用缓冲区的大小和尺寸。这种优化减少RAM和ROM的使用和改进代码的执行速度。
示例模型
该模型DifferentSizeReuse包含信号不同的大小和尺寸。
模型=“DifferentSizeReuse”;open_system(模型);
没有生成代码优化
在配置参数对话框中,设置重用缓冲区的大小和尺寸参数从或在MATLAB®命令窗口中,输入:
set_param (“DifferentSizeReuse”,“DifferentSizesBufferReuse”,“关闭”);
关闭评论和构建模型。
set_param (“DifferentSizeReuse”,“GenerateComments”,“关闭”);slbuild (“DifferentSizeReuse”);
# # #开始构建过程:DifferentSizeReuse # # #成功完成构建过程:DifferentSizeReuse模型建立目标:总结构建模型重建行动的原因= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = DifferentSizeReuse代码生成和编译。代码生成信息文件不存在。1 1模型的建立(0模型已经更新)构建持续时间:0 h 0米31.195秒
查看生成的代码没有优化。的D_Work结构是:
hfile = fullfile (“DifferentSizeReuse_ert_rtw”,…“DifferentSizeReuse.h”);rtwdemodbtype (hfile“typedef struct {”,'}D_Work ',1,1);
typedef struct {real_T ComplextoRealImag_o1 [16384];real_T ComplextoRealImag_o2 [16384];real_T z [3969];real_T z_n [3969];real_T z_j [4032];real_T z_m [4032];real_T z_g [4096];real_T z_e [4096];}D_Work;
的部分DifferentSizeReuse.c是:
用= fullfile (“DifferentSizeReuse_ert_rtw”,…“DifferentSizeReuse.c”);rtwdemodbtype(用“# include“DifferentSizeReuse.h””,…“空白DifferentSizeReuse_initialize(空白)1 0);
# include“DifferentSizeReuse。h rtwtypes # include。h”# include <数学。h > D_Work rtDWork;ExternalInputs rtU;ExternalOutputs而无;静态RT_MODEL rtM_;RT_MODEL * const rtM = &rtM_;静态孔隙Downsample (const real_T rtu_u [16384], real_T rty_z [4096]);静态孔隙△(const real_T rtu_u [4096], real_T rty_z [4032]);静态孔隙δy (const real_T rtu_u [4032], real_T rty_z [3969]);静态孔隙NoninplaceableSS1(无效); static void NoninplaceableSS2(void); static void NoninplaceableSS3(void); static void Downsample(const real_T rtu_u[16384], real_T rty_z[4096]) { int32_T tmp; int32_T tmp_0; int32_T tmp_1; int32_T x; int32_T y; for (x = 0; x < 64; x++) { for (y = 0; y < 64; y++) { tmp_0 = (y + 1) << 1; tmp_1 = (x + 1) << 1; tmp = ((tmp_0 - 2) << 7) + tmp_1; tmp_0 = ((tmp_0 - 1) << 7) + tmp_1; rty_z[x + (y << 6)] = (((rtu_u[tmp - 2] + rtu_u[tmp - 1]) + rtu_u[tmp_0 - 2]) + rtu_u[tmp_0 - 1]) / 4.0; } } } static void NoninplaceableSS1(void) { Downsample(rtDWork.ComplextoRealImag_o1, rtDWork.z_e); Downsample(rtDWork.ComplextoRealImag_o2, rtDWork.z_g); } static void DeltaX(const real_T rtu_u[4096], real_T rty_z[4032]) { int32_T tmp; int32_T x; int32_T y; for (x = 0; x < 63; x++) { for (y = 0; y < 64; y++) { tmp = (y << 6) + x; rty_z[x + 63 * y] = fabs(rtu_u[tmp] - rtu_u[tmp + 1]); } } } static void NoninplaceableSS2(void) { DeltaX(rtDWork.z_e, rtDWork.z_m); DeltaX(rtDWork.z_g, rtDWork.z_j); } static void DeltaY(const real_T rtu_u[4032], real_T rty_z[3969]) { int32_T i; for (i = 0; i < 3969; i++) { rty_z[i] = fabs(rtu_u[i] - rtu_u[i + 63]); } } static void NoninplaceableSS3(void) { DeltaY(rtDWork.z_m, rtDWork.z_n); DeltaY(rtDWork.z_j, rtDWork.z); } void DifferentSizeReuse_step(void) { int32_T i; for (i = 0; i < 16384; i++) { rtDWork.ComplextoRealImag_o1[i] = rtU.ComplexData[i].re; rtDWork.ComplextoRealImag_o2[i] = rtU.ComplexData[i].im; } NoninplaceableSS1(); NoninplaceableSS2(); NoninplaceableSS3(); for (i = 0; i < 3969; i++) { rtY.Out1[i].re = rtDWork.z_n[i]; rtY.Out1[i].im = rtDWork.z[i]; } }
的D_work结构包含八个全局变量的输入和输出Downsample,△,δy。这些变量有不同的大小。
生成代码的优化
在配置参数对话框,确认信号存储重用被选中。
设置重用缓冲区的大小和尺寸参数
在或在MATLAB命令窗口中,输入:
set_param (“DifferentSizeReuse”,“DifferentSizesBufferReuse”,“上”);
构建的模型。
set_param (“DifferentSizeReuse”,“GenerateComments”,“关闭”);slbuild(模型);
# # #开始构建过程:DifferentSizeReuse # # #成功完成构建过程:DifferentSizeReuse模型建立目标:总结构建模型重建行动的原因= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = DifferentSizeReuse代码生成和编译。生成的代码是过时了。1 1模型的建立(0模型已经更新)构建持续时间:0 h 0米17.912秒
查看生成的代码没有优化。的D_Work结构是:
rtwdemodbtype (hfile“typedef struct {”,'}D_Work ',1,1);
typedef struct {real_T z [4096];real_T z_n [16384];real_T z_a [16384];}D_Work;
的部分DifferentSizeReuse.c是:
用= fullfile (“DifferentSizeReuse_ert_rtw”,…“DifferentSizeReuse.c”);rtwdemodbtype(用“# include“DifferentSizeReuse.h””,…“空白DifferentSizeReuse_initialize(空白)1 0);
# include“DifferentSizeReuse。h rtwtypes # include。h”# include <数学。h > D_Work rtDWork;ExternalInputs rtU;ExternalOutputs而无;静态RT_MODEL rtM_;RT_MODEL * const rtM = &rtM_;静态孔隙Downsample (const real_T rtu_u [16384], real_T rty_z [4096]);静态孔隙△(const real_T rtu_u [4096], real_T rty_z [4032]);静态孔隙δy (const real_T rtu_u [4032], real_T rty_z [3969]);静态孔隙NoninplaceableSS1(无效); static void NoninplaceableSS2(void); static void NoninplaceableSS3(void); static void Downsample(const real_T rtu_u[16384], real_T rty_z[4096]) { int32_T tmp; int32_T tmp_0; int32_T tmp_1; int32_T x; int32_T y; for (x = 0; x < 64; x++) { for (y = 0; y < 64; y++) { tmp_0 = (y + 1) << 1; tmp_1 = (x + 1) << 1; tmp = ((tmp_0 - 2) << 7) + tmp_1; tmp_0 = ((tmp_0 - 1) << 7) + tmp_1; rty_z[x + (y << 6)] = (((rtu_u[tmp - 2] + rtu_u[tmp - 1]) + rtu_u[tmp_0 - 2]) + rtu_u[tmp_0 - 1]) / 4.0; } } } static void NoninplaceableSS1(void) { Downsample(rtDWork.z_n, rtDWork.z); Downsample(rtDWork.z_a, &rtDWork.z_n[0]); } static void DeltaX(const real_T rtu_u[4096], real_T rty_z[4032]) { int32_T tmp; int32_T x; int32_T y; for (x = 0; x < 63; x++) { for (y = 0; y < 64; y++) { tmp = (y << 6) + x; rty_z[x + 63 * y] = fabs(rtu_u[tmp] - rtu_u[tmp + 1]); } } } static void NoninplaceableSS2(void) { DeltaX(rtDWork.z, &rtDWork.z_a[0]); DeltaX(&rtDWork.z_n[0], &rtDWork.z[0]); } static void DeltaY(const real_T rtu_u[4032], real_T rty_z[3969]) { int32_T i; for (i = 0; i < 3969; i++) { rty_z[i] = fabs(rtu_u[i] - rtu_u[i + 63]); } } static void NoninplaceableSS3(void) { DeltaY(&rtDWork.z_a[0], &rtDWork.z_n[0]); DeltaY(&rtDWork.z[0], &rtDWork.z_a[0]); } void DifferentSizeReuse_step(void) { int32_T i; for (i = 0; i < 16384; i++) { rtDWork.z_n[i] = rtU.ComplexData[i].re; rtDWork.z_a[i] = rtU.ComplexData[i].im; } NoninplaceableSS1(); NoninplaceableSS2(); NoninplaceableSS3(); for (i = 0; i < 3969; i++) { rtY.Out1[i].re = rtDWork.z_n[i]; rtY.Out1[i].im = rtDWork.z_a[i]; } }
的D_work现在结构包含三个全局变量,而不是八个全局变量的输入和输出Downsample,△,δy。生成的代码使用这些变量的大小不同的输入和输出。
关闭模型和代码生成报告。
bdclose rtwdemoclean(模型);
限制
如果你使用一个
可重用的定制的存储类指定重用信号有不同的大小和形状,你必须选择重用缓冲区的大小和尺寸参数。否则,不建立模型。代码生成器以较低的优先级不能代替一个缓冲缓冲区小一号。
代码生成器并不重用缓冲区有不同的大小和符号维度。
