AMD GPU: Computation Error

Author	Message
HomerSayJimson Send message Joined: 11 Mar 18 Posts: 2 Credit: 7,683,602 RAC: 0	Message 67261 - Posted: 18 Mar 2018, 9:37:37 UTC My GPU WUs always end like this: https://milkyway.cs.rpi.edu/milkyway/result.php?resultid=2287474945 I'm using Fedora 27 without proprietary fglrx driver. ID: 67261 · Rating: 0 · rate: / Reply Quote

mmonnin Send message Joined: 2 Oct 16 Posts: 167 Credit: 1,008,062,758 RAC: 155	Message 67265 - Posted: 18 Mar 2018, 23:38:19 UTC - in response to Message 67261. My GPU WUs always end like this: https://milkyway.cs.rpi.edu/milkyway/result.php?resultid=2287474945 I'm using Fedora 27 without proprietary fglrx driver. That does not support double precision on the APU: http://www.gpuzoo.com/GPU-AMD/Radeon_HD_7540D_IGP.html ID: 67265 · Rating: 0 · rate: / Reply Quote

HomerSayJimson Send message Joined: 11 Mar 18 Posts: 2 Credit: 7,683,602 RAC: 0	Message 67267 - Posted: 20 Mar 2018, 8:25:02 UTC - in response to Message 67265. Should'nt OpenCL do that in software if necessary? clinfo says $ clinfo DRM_IOCTL_I915_GEM_APERTURE failed: No such file or directory Assuming 131072kB available aperture size. May lead to reduced performance or incorrect rendering. get chip id failed: -1 [22] param: 4, val: 0 DRM_IOCTL_I915_GEM_APERTURE failed: No such file or directory Assuming 131072kB available aperture size. May lead to reduced performance or incorrect rendering. get chip id failed: -1 [22] param: 4, val: 0 cl_get_gt_device(): error, unknown device: 0 DRM_IOCTL_I915_GEM_APERTURE failed: No such file or directory Assuming 131072kB available aperture size. May lead to reduced performance or incorrect rendering. get chip id failed: -1 [22] param: 4, val: 0 DRM_IOCTL_I915_GEM_APERTURE failed: No such file or directory Assuming 131072kB available aperture size. May lead to reduced performance or incorrect rendering. get chip id failed: -1 [22] param: 4, val: 0 cl_get_gt_device(): error, unknown device: 0 Number of platforms 3 Platform Name Clover Platform Vendor Mesa Platform Version OpenCL 1.1 Mesa 17.3.6 Platform Profile FULL_PROFILE Platform Extensions cl_khr_icd Platform Extensions function suffix MESA Platform Name Portable Computing Language Platform Vendor The pocl project Platform Version OpenCL 1.2 pocl 0.15-pre, LLVM 5.0.0 Platform Profile FULL_PROFILE Platform Extensions cl_khr_icd Platform Extensions function suffix POCL Platform Name Intel Gen OCL Driver Platform Vendor Intel Platform Version OpenCL 2.0 beignet 1.3 Platform Profile FULL_PROFILE Platform Extensions cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_3d_image_writes cl_khr_image2d_from_buffer cl_khr_depth_images cl_khr_spir cl_khr_icd cl_intel_accelerator cl_intel_subgroups cl_intel_subgroups_short cl_khr_gl_sharing Platform Extensions function suffix Intel DRM_IOCTL_I915_GEM_APERTURE failed: No such file or directory Assuming 131072kB available aperture size. May lead to reduced performance or incorrect rendering. get chip id failed: -1 [22] param: 4, val: 0 cl_get_gt_device(): error, unknown device: 0 Platform Name Clover Number of devices 1 Device Name AMD ARUBA (DRM 2.50.0 / 4.15.9-300.fc27.x86_64, LLVM 5.0.1) Device Vendor AMD Device Vendor ID 0x1002 Device Version OpenCL 1.1 Mesa 17.3.6 Driver Version 17.3.6 Device OpenCL C Version OpenCL C 1.1 Device Type GPU Device Available Yes Device Profile FULL_PROFILE Max compute units 3 Max clock frequency 0MHz Max work item dimensions 3 Max work item sizes 256x256x256 Max work group size 256 Compiler Available Yes Preferred work group size multiple 64 Preferred / native vector sizes char 16 / 16 short 8 / 8 int 4 / 4 long 2 / 2 half 0 / 0 (n/a) float 4 / 4 double 2 / 2 (cl_khr_fp64) Half-precision Floating-point support (n/a) Single-precision Floating-point support (core) Denormals No Infinity and NANs Yes Round to nearest Yes Round to zero No Round to infinity No IEEE754-2008 fused multiply-add No Support is emulated in software No Correctly-rounded divide and sqrt operations No Double-precision Floating-point support (cl_khr_fp64) Denormals Yes Infinity and NANs Yes Round to nearest Yes Round to zero Yes Round to infinity Yes IEEE754-2008 fused multiply-add Yes Support is emulated in software No Address bits 32, Little-Endian Global memory size 1071431680 (1022MiB) Error Correction support No Max memory allocation 750002176 (715.3MiB) Unified memory for Host and Device No Minimum alignment for any data type 128 bytes Alignment of base address 32768 bits (4096 bytes) Global Memory cache type None Image support No Local memory type Local Local memory size 32768 (32KiB) Max constant buffer size 750002176 (715.3MiB) Max number of constant args 13 Max size of kernel argument 1024 Queue properties Out-of-order execution No Profiling Yes Profiling timer resolution 0ns Execution capabilities Run OpenCL kernels Yes Run native kernels No Device Extensions cl_khr_byte_addressable_store cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_fp64 Platform Name Portable Computing Language Number of devices 1 Device Name pthread-AMD A6-5400K APU with Radeon(tm) HD Graphics Device Vendor AuthenticAMD Device Vendor ID 0x1022 Device Version OpenCL 1.2 pocl HSTR: pthread-x86_64-unknown-linux-gnu-haswell Driver Version 0.15-pre Device OpenCL C Version OpenCL C 1.2 pocl Device Type CPU Device Available Yes Device Profile FULL_PROFILE Max compute units 2 Max clock frequency 3600MHz Device Partition (core) Max number of sub-devices 2 Supported partition types equally, by counts Max work item dimensions 3 Max work item sizes 4096x4096x4096 Max work group size 4096 Compiler Available Yes Linker Available Yes 1 error generated. === CL_PROGRAM_BUILD_LOG === error: <built-in>:2:10: '/usr/lib64/clang/5.0.0/include/opencl-c.h' file not found error: <built-in>:2:10: '/usr/lib64/clang/5.0.0/include/opencl-c.h' file not found error: <built-in>:2:10: '/usr/lib64/clang/5.0.0/include/opencl-c.h' file not found error: <built-in>:2:10: '/usr/lib64/clang/5.0.0/include/opencl-c.h' file not found error: <built-in>:2:10: '/usr/lib64/clang/5.0.0/include/opencl-c.h' file not found error: <built-in>:2:10: '/usr/lib64/clang/5.0.0/include/opencl-c.h' file not found Preferred work group size multiple <getWGsizes:523: build program : error -11> Preferred / native vector sizes char 16 / 16 short 8 / 8 int 4 / 4 long 2 / 2 half 8 / 8 (n/a) float 4 / 4 double 2 / 2 (cl_khr_fp64) Half-precision Floating-point support (n/a) Single-precision Floating-point support (core) Denormals Yes Infinity and NANs Yes Round to nearest Yes Round to zero Yes Round to infinity Yes IEEE754-2008 fused multiply-add Yes Support is emulated in software No Correctly-rounded divide and sqrt operations No Double-precision Floating-point support (cl_khr_fp64) Denormals Yes Infinity and NANs Yes Round to nearest Yes Round to zero Yes Round to infinity Yes IEEE754-2008 fused multiply-add Yes Support is emulated in software No Address bits 64, Little-Endian Global memory size 2727760896 (2.54GiB) Error Correction support No Max memory allocation 1073741824 (1024MiB) Unified memory for Host and Device Yes Minimum alignment for any data type 128 bytes Alignment of base address 1024 bits (128 bytes) Global Memory cache type Read/Write Global Memory cache size 16384 (16KiB) Global Memory cache line size 64 bytes Image support Yes Max number of samplers per kernel 16 Max size for 1D images from buffer 67108864 pixels Max 1D or 2D image array size 2048 images Max 2D image size 8192x8192 pixels Max 3D image size 2048x2048x2048 pixels Max number of read image args 128 Max number of write image args 128 Local memory type Global Local memory size 16777216 (16MiB) Max constant buffer size 16777216 (16MiB) Max number of constant args 8 Max size of kernel argument 1024 Queue properties Out-of-order execution No Profiling Yes Prefer user sync for interop Yes Profiling timer resolution 1ns Execution capabilities Run OpenCL kernels Yes Run native kernels Yes printf() buffer size 1048576 (1024KiB) Built-in kernels Device Extensions cl_khr_byte_addressable_store cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_3d_image_writes cl_khr_fp64 cl_khr_int64_base_atomics cl_khr_int64_extended_atomics Platform Name Intel Gen OCL Driver Number of devices 0 NULL platform behavior clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...) Clover clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...) Success [MESA] clCreateContext(NULL, ...) [default] Success [MESA] clCreateContext(NULL, ...) [other] Success [POCL] clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT) Success (1) Platform Name Clover Device Name AMD ARUBA (DRM 2.50.0 / 4.15.9-300.fc27.x86_64, LLVM 5.0.1) clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU) No devices found in platform clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU) Success (1) Platform Name Clover Device Name AMD ARUBA (DRM 2.50.0 / 4.15.9-300.fc27.x86_64, LLVM 5.0.1) clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR) No devices found in platform clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM) No devices found in platform clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL) Success (1) Platform Name Clover Device Name AMD ARUBA (DRM 2.50.0 / 4.15.9-300.fc27.x86_64, LLVM 5.0.1) ICD loader properties ICD loader Name OpenCL ICD Loader ICD loader Vendor OCL Icd free software ICD loader Version 2.2.11 ICD loader Profile OpenCL 2.1 ID: 67267 · Rating: 0 · rate: / Reply Quote

mikey Send message Joined: 8 May 09 Posts: 3339 Credit: 524,010,781 RAC: 0	Message 67268 - Posted: 20 Mar 2018, 10:46:44 UTC - in response to Message 67267. Should'nt OpenCL do that in software if necessary? No double precision is something your gpu either comes with from the factory or it never has it. ID: 67268 · Rating: 0 · rate: / Reply Quote

Elvis Send message Joined: 9 Feb 11 Posts: 11 Credit: 57,540,973 RAC: 1,881	Message 67562 - Posted: 4 Jun 2018, 20:02:50 UTC Hello I have an Amd Radeon 380X graphic card and I have lot's of computation errors almost 50% Once again It seams that this projects has unsolved computation issues on amd/ati graphic cards. The team of this...so called "project" is probably not up to the task for fixing their own issues with graphic card computation. It is happenning very often, I mean very very often! So it's a shit project for me ! I won't waste computation time and electricity on Milkyway anymore despite my respectable score and history. If, like me you have lot's of computation errors with this...?project? Crunch on Einstein at home wich is issue and error free ! Sincerly Elvis ID: 67562 · Rating: 0 · rate: / Reply Quote

melk Send message Joined: 10 Dec 17 Posts: 47 Credit: 695,662,962 RAC: 0	Message 67580 - Posted: 6 Jun 2018, 16:51:18 UTC - in response to Message 67562. Hello I have an Amd Radeon 380X graphic card and I have lot's of computation errors almost 50% Once again It seams that this projects has unsolved computation issues on amd/ati graphic cards. The team of this...so called "project" is probably not up to the task for fixing their own issues with graphic card computation. It is happenning very often, I mean very very often! So it's a shit project for me ! I won't waste computation time and electricity on Milkyway anymore despite my respectable score and history. If, like me you have lot's of computation errors with this...?project? Crunch on Einstein at home wich is issue and error free ! Sincerly Elvis Elvis, that's too bad you are having computation errors on your cards. What have you tried to fix that? Not sure insulting the devs is really going to do much other than make you look foolish. "It is happenning very often, I mean very very often!" Hrmmm, couldn't be your particular hardware/software eh? I currently have 3 invalid tasks across 6 cards and hundreds of tasks completed. What does that show? That the devs are responsible for terrible coding, causing all your troubles? Or maybe, just maybe, you need to take a swing at tweaking your particular set of OS/drivers/boinc config etc? I'm happy to help you troubleshoot. Personally I found lowering my CPU setting and leaving some room for OS tasks helped a lot. What particular cards/os/drivers etc are you running? Latest version of boinc app updated? Any tweaks to the boinc .xml files? Running multiple WU per card? ID: 67580 · Rating: 0 · rate: / Reply Quote