search for: stencil

Hello, I am trying to vectorize following stencil code; #include <stdio.h> #define N 100351 // This function computes 2D-5 point Jacobi stencil void stencil(int a[restrict][N]) { int i, j, k; for (k = 0; k < 100; k++) { for (i = 1; i <= N-2; i++) { for (j = 1; j <= N-2; j++) { a[i][j] = 0.25 * (a[i][j...

I am able to vectorize it with the following code; #include <stdio.h> #define N 100351 // This function computes 2D-5 point Jacobi stencil void stencil(int a[][N], int b[][N]) { int i, j, k; for (k = 0; k < N; k++) { for (i = 1; i <= N-2; i++) for (j = 1; j <= N-2; j++) b[i][j] = 0.25 * (a[i][j] + a[i-1][j] + a[i+1][j] + a[i][j-1] + a[i][j+1]); for (i = 1; i <= N-2; i++) for (j = 1; j <=...

...tion to vectorize such codes? please reply. i m waiting. On Jul 1, 2017 12:30 PM, "hameeza ahmed" <hahmed2305 at gmail.com> wrote: > I even tried polly but still my llvm IR does not contain vector > instructions. i used the following command; > > clang -S -emit-llvm stencil.c -march=knl -O3 -mllvm -polly -mllvm > -polly-vectorizer=stripmine -o stencil_poly.ll > > Please specify what is wrong with my code? > > > On Sat, Jul 1, 2017 at 4:08 PM, hameeza ahmed <hahmed2305 at gmail.com> > wrote: > >> Hello, >> >> I am trying...

Your problem is due to GVN partial reduction elimination (PRE) which introduces a PHI node the current loop vectorizer cannot handle: opt -O3 stencil.ll -pass-remarks=loop-vectorize -pass-remarks-missed=loop-vectorize -pass-remarks-analysis=loop-vectorize remark: <unknown>:0:0: loop not vectorized: value that could not be identified as reduction is used outside the loop remark: <unknown>:0:0: loop not vectorized The message is not e...

<div> </div><div> </div><div>Hello,</div><div> </div><div>To me this is an issue in llvm loop vectorizer (if N is large enough to prevent complete unrolling of j-loop).</div><div> </div><div>Woud you mind to share stencil.ll than I would say more definitely what the issue is.</div><div> </div><div>Regards,</div><div>Serge.</div><div> </div><div> </div><div>22.10.2017, 03:21, "hameeza ahmed" <hahmed2305@gmail.com>:</div><...

I have matrix multiplication and stencil code. I vectorise it through the following command. opt -S -O3 -force-vector-width=2048 stencil.ll -o stencil_o3.ll in both the examples of matrix mult and stencil it vectorises fine when my loop iterations >2048. but if i keep both iterations and vector width=2048. it produces scalar code IR...

Hello Everyone! In planning for my new asterisk environment, I would like to have some nice presentation graphics for "breaking down" the system to management here where I work. I like to use Visio for these kinds of things, and was wondering if anyone had a good source for Visio stencils that fit into a telecom plan. There was a set from Cisco, and it'll probably be 'good enough' for what I need, but I thought I would ask the community. Thanks everyone! - Don

...hich can legitimately cause differences. > The following tests pass at "-O3" and "-O3 -ffp-contract=on" compared with FP_ABSTOLERANCE=1e-5 against "-O0 -ffp-contract=off": polybench/linear-algebra/kernels/symm polybench/linear-algebra/solvers/gramschmidt polybench/stencils/seidel-2d The output of these 3 tests from "-O0 -ffp-contract=off" also matches the reference output. The following 2 tests still require increased FP_ABSTOLERANCE to pass compare between "-O3", "-O3 -ffp-contract=on" vs. "-O0 -ffp-contract=off" polybench...

..._MixerInit No master control found on USB Device 0x46d:0x8ad, disabling mixer err:alsa:ALSA_CheckSetVolume Could not find 'PCM Playback Volume' element fixme:dsalsa:IDsDriverBufferImpl_SetVolumePan (0x21bab8,0x21bee0): stub fixme:d3d_surface:IWineD3DSurfaceImpl_BltZ (0x229ebb8): Unsupp depthstencil blit fixme:d3d_surface:surface_load_location Unimplemented location SFLAG_INSYSMEM for depth/stencil buffers. fixme:d3d_surface:surface_load_location Unimplemented location SFLAG_INSYSMEM for depth/stencil buffers. fixme:d3d_surface:IWineD3DBaseSurfaceImpl_Blt Can't handle WINEDDBLT_ASYNC flag...

...4R4A4_UNORM to floating point. err:d3d_surface:surface_convert_color_to_float Unhandled conversion from WINED3DFMT_B5G5R5A1_UNORM to floating point. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d_surface:surface_load_location Unimplemented location SFLAG_INSYSMEM for depth/stencil buffers. err:d3d_surface:surface_modify_location Surface 0x219d78 does not have any up to date location. err:d3d:wined3d_device_uninit_3d Something is still holding a reference to depth/stencil buffer 0x219d78. fixme:d3d:wined3d_device_decref Device released with resources still bound, acceptab...

Greetings everybody! For anybody working on blur-related things, take a look at this glitch I encountered: https://bugs.freedesktop.org/show_bug.cgi?id=10275 Best regards... Mirco "MacSlow" M?ller -- email - macslow@bangang.de www - http://macslow.thepimp.net lowfat - http://macslow.thepimp.net/sponsor-it

https://bugs.freedesktop.org/show_bug.cgi?id=48742 Bug #: 48742 Summary: fbotexture -arb misrenders on nv43 Classification: Unclassified Product: Mesa Version: git Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/nouveau

...) --------- diff --git a/src/gallium/drivers/nv50/nv50_clear.c b/src/gallium/drivers/nv50/nv50_clear.c index eca65a8..d0785fc 100644 --- a/src/gallium/drivers/nv50/nv50_clear.c +++ b/src/gallium/drivers/nv50/nv50_clear.c @@ -26,6 +26,13 @@ #include "nv50_context.h" +/* If clearing the stencil buffer is not requested, NVIDIA clears both + anyway as long as stencil testing is off. */ +#define NV50TCL_CLEAR_DEPTH_BITS 0x01 +#define NV50TCL_CLEAR_STENCIL_BITS 0x02 +#define NV50TCL_CLEAR_DEPTH_STENCIL_BITS 0x03 +#define NV50TCL_CLEAR_COLOR_BITS(i) (0x3c + (0x40 * (i))) + void nv50_clear(...

..._MixerInit No master control found on USB Device 0x46d:0x8ad, disabling mixer err:alsa:ALSA_CheckSetVolume Could not find 'PCM Playback Volume' element fixme:dsalsa:IDsDriverBufferImpl_SetVolumePan (0x21aa58,0x21ae80): stub fixme:d3d_surface:IWineD3DSurfaceImpl_BltZ (0x1d97bb8): Unsupp depthstencil blit fixme:d3d_surface:surface_load_location Unimplemented location SFLAG_INSYSMEM for depth/stencil buffers. fixme:d3d_surface:IWineD3DBaseSurfaceImpl_Blt Can't handle WINEDDBLT_ASYNC flag right now. fixme:d3d_surface:IWineD3DSurfaceImpl_BltZ (0x1d12a0): Unsupp depthstencil blit fixme:d3d_surf...

..._MixerInit No master control found on USB Device 0x46d:0x8ad, disabling mixer err:alsa:ALSA_CheckSetVolume Could not find 'PCM Playback Volume' element fixme:dsalsa:IDsDriverBufferImpl_SetVolumePan (0x21b040,0x21b468): stub fixme:d3d_surface:IWineD3DSurfaceImpl_BltZ (0x1d97dc0): Unsupp depthstencil blit fixme:d3d_surface:surface_load_location Unimplemented location SFLAG_INSYSMEM for depth/stencil buffers. fixme:d3d_surface:IWineD3DBaseSurfaceImpl_Blt Can't handle WINEDDBLT_ASYNC flag right now. fixme:d3d_surface:IWineD3DSurfaceImpl_BltZ (0x1d1888): Unsupp depthstencil blit fixme:d3d_surf...

...DCMP_NOTEQUAL and D3DCMP_EQUAL do not work correctly yet. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d:StencilOp Unrecognized stencil op 0 fixme:d3d:StencilOp Unrecognized stencil op 0 fixme:d3d:StencilOp Unrecognized stencil op 0 those last ones are spaming console much furthermore. I think that it indicates shortcomings of Wine but I do not know what. You can download demo from Steam or GamersHell:...

...set_pixel_format Failed to set pixel format 15 on device context 0xc8c, last error 0. err:d3d:context_create Failed to set pixel format 15 on device context 0xc8c. fixme:d3d:wined3d_get_format Can't find format WINED3DFMT_R24_UNORM_X8_TYPELESS (0x49) in the format lookup table fixme:d3d:getDepthStencilBits Unsupported depth/stencil format WINED3DFMT_UNKNOWN. err:wgl:internal_SetPixelFormat Couldn't set format of the window, returning failure err:d3d:context_set_pixel_format Failed to set pixel format 11 on device context 0xc9c, last error 0. err:d3d:context_create Failed to set pixel format 1...

...asynchronous hostname resolution. Henri Verbeet (40): d3d8: Do not specify WINED3D_TEXTURE_CREATE_MAPPABLE in texture_init(). d3d8: Do not specify WINED3D_TEXTURE_CREATE_MAPPABLE in cubetexture_init(). d3d8: Do not specify WINED3D_TEXTURE_CREATE_MAPPABLE in d3d8_device_CreateDepthStencilSurface(). d3d8: Do not specify WINED3D_TEXTURE_CREATE_MAPPABLE in d3d8_device_CreateImageSurface(). d3d8: Do not add map access indiscriminately in texture_init(). d3d8: Do not add map access indiscriminately in cubetexture_init(). d3d8: Do not add map access indiscriminatel...

...in the format lookup table fixme:d3d:debug_d3dformat Unrecognized 909201952 (as fourcc: R16) WINED3DFORMAT! fixme:d3d:getFormatDescEntry Can't find format unrecognized(909201952) in the format lookup table fixme:d3d_surface:surface_load_ds_location (0x170d08) Not supported with fixed up depth stencil fixme:d3d_surface:surface_load_ds_location (0x170d08) Not supported with fixed up depth stencil fixme:d3d_surface:surface_load_ds_location (0x170d08) Not supported with fixed up depth stencil fixme:d3d_surface:surface_load_ds_location (0x170d08) Not supported with fixed up depth stencil fixme:d3d_s...

...GetIpAddrTable causing some licensed programs to fail due to invalid MAC address 40359 Galactic Civilization III fails to start 40804 Touhou 6, 7, 8, 10, 11 have severe fps drop. 41055 "Texture ... does not have a drawable" on i915 with D3D8 41059 Necropolis requires OMSetDepthStencilState Two-sided stencil testing when using DirectX 11 41402 DDBST unusable due to "fixme:systray:wine_notify_icon unhandled tray message: 4" 41454 Outlast 2 Demo requires R32G32_UINT and R32_UINT formats 41493 Sniper Elite V2 stuck at "Completing Installation 1%" 41508...