Could not create topdir for cache #46799

New Issue

Sylvain · 2015-11-17T18:50:26+01:00

Sylvain commented

2015-11-17 18:50:26 +01:00

System Information
Fedora 23
CPU : i7 4771
GC : Radeon R9 270x 2go or R9 290x 4Go
RAM 16GB RAM
use free graphic driver "xorg-x11-drv-ati 7.6.0-0.4.20150729git5510cd6.fc23" and Mesa 11.0->11.1 devel

Blender Version
Broken: blender 2.76 -> blender-2.76-98931d9-linux-glibc211-x86_64 git
Worked: (optional)

Choice "Cycle Render" and "File -> User préférences->systeme"

Error message :
blender-2.76-98931d9-linux-glibc211-x86_64]$ ./blender
connect failed: No such file or directory
ATTENTION: default value of option vblank_mode overridden by environment.
found bundled python: /home/sylvain/3D/Experimental/blender-2.76-98931d9-linux-glibc211-x86_64/2.76/python
Could not create topdir for cache[sylvain@zeus blender-2.76-98931d9-linux-glibc211-x86_64]$

**System Information** Fedora 23 CPU : i7 4771 GC : Radeon R9 270x 2go or R9 290x 4Go RAM 16GB RAM use free graphic driver "xorg-x11-drv-ati 7.6.0-0.4.20150729git5510cd6.fc23" and Mesa 11.0->11.1 devel **Blender Version** Broken: blender 2.76 -> blender-2.76-98931d9-linux-glibc211-x86_64 git Worked: (optional) Choice "Cycle Render" and "File -> User préférences->systeme" Error message : blender-2.76-98931d9-linux-glibc211-x86_64]$ ./blender connect failed: No such file or directory ATTENTION: default value of option vblank_mode overridden by environment. found bundled python: /home/sylvain/3D/Experimental/blender-2.76-98931d9-linux-glibc211-x86_64/2.76/python Could not create topdir for cache[sylvain@zeus blender-2.76-98931d9-linux-glibc211-x86_64]$

Sylvain commented

2015-11-17 18:50:26 +01:00

Changed status to: 'Open'

Sylvain commented

2015-11-17 18:50:26 +01:00

Added subscriber: @vindic

Bastien Montagne commented

2015-11-19 17:09:51 +01:00

Added subscribers: @Sergey, @ThomasDinges, @mont29

Bastien Montagne commented

2015-11-19 17:09:51 +01:00

@Sergey @ThomasDinges maybe you have an idea here (seems related to Cycles? Maybe?), could not find any reference to such message by greping the current codebase though…

Thomas Dinges commented

2015-11-19 17:20:50 +01:00

Is something not working explicitly or is there just this error message in the console?

Sergey Sharybin commented

2015-11-19 18:26:12 +01:00

I don't see any mention of such an error message in our code. However, it could be an OpenCL device enumeration thing -- some older/buggy drivers might require creating some temporary file to cache all the enumeration queries from the driver side, which could be read-only for the current user.

Is it official build of Blender (aka, from blender.org sites) ?
Does it happen if you start Blender from the command line in the following way: CYCLES_OPENCL_TEST=NONE ./blender ?

I don't see any mention of such an error message in our code. However, it could be an OpenCL device enumeration thing -- some older/buggy drivers might require creating some temporary file to cache all the enumeration queries from the driver side, which could be read-only for the current user. - Is it official build of Blender (aka, from blender.org sites) ? - Does it happen if you start Blender from the command line in the following way: `CYCLES_OPENCL_TEST=NONE ./blender ` ?

Brecht Van Lommel commented

2015-11-19 19:07:18 +01:00

Added subscriber: @brecht

Brecht Van Lommel commented

2015-11-19 19:07:18 +01:00

This seems to be an error from pocl . Looking at the code I don't think there's much we can do in Blender, it looks like an issue with pocl that would also happen when running e.g. clinfo. I'm not sure if pocl is installed by default on fedora or if you installed that manually, but that OpenCL implementation won't work for Cycles.

This seems to be [an error from pocl ](https://github.com/pocl/pocl/blob/master/lib/CL/pocl_cache.c#L495). Looking at the code I don't think there's much we can do in Blender, it looks like an issue with pocl that would also happen when running e.g. `clinfo`. I'm not sure if pocl is installed by default on fedora or if you installed that manually, but that OpenCL implementation won't work for Cycles.

Sylvain commented

2015-11-19 20:24:29 +01:00

"CYCLES_OPENCL_TEST=NONE ./blender" it's ok. The problem disappears

This problem touch the official build and not official (rpm Fedora 23).

clinfo done :

$ clinfo 
Number of platforms                               2
  Platform Name                                   Clover
  Platform Vendor                                 Mesa
  Platform Version                                OpenCL 1.1 MESA 11.1.0-devel
  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 0.12
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd
  Platform Extensions function suffix             POCL

  Platform Name                                   Clover
Number of devices                                 1
  Device Name                                     AMD HAWAII (DRM 2.43.0, LLVM 3.7.0)
  Device Vendor                                   AMD
  Device Vendor ID                                0x1002
  Device Version                                  OpenCL 1.1 MESA 11.1.0-devel
  Driver Version                                  11.1.0-devel
  Device OpenCL C Version                         OpenCL C 1.1 
  Device Type                                     GPU
  Device Profile                                  FULL_PROFILE
  Max compute units                               44
  Max clock frequency                             1040MHz
  Max work item dimensions                        3
  Max work item sizes                             256x256x256
  Max work group size                             256
  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
    Correctly-rounded divide and sqrt operations  No
  Address bits                                    32, Little-Endian
  Global memory size                              1073741824 (1024MiB)
  Error Correction support                        No
  Max memory allocation                           268435456 (256MiB)
  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                        None
  Image support                                   No
  Local memory type                               Local
  Local memory size                               32768 (32KiB)
  Max constant buffer size                        268435456 (256MiB)
  Max number of constant args                     16
  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 Available                                Yes
  Compiler Available                              Yes
  Device 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_fp64

  Platform Name                                   Portable Computing Language
Number of devices                                 1
  Device Name                                     pthread-Intel(R) Core(TM) i7-4771 CPU @ 3.50GHz
  Device Vendor                                   GenuineIntel
  Device Vendor ID                                0x8086
  Device Version                                  OpenCL 1.2 pocl
  Driver Version                                  0.12
  Device OpenCL C Version                         OpenCL C 1.2
  Device Type                                     CPU, Default
  Device Profile                                  FULL_PROFILE
  Max compute units                               8
  Max clock frequency                             3900MHz
  Device Partition                                (core)
    Max number of sub-devices                     8
    Supported partition types                     equally, by counts
  Max work item dimensions                        3
  Max work item sizes                             4096x4096x4096
  Max work group size                             4096
  Preferred work group size multiple              8
  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                                     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                                     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
  Address bits                                    64, Little-Endian
  Global memory size                              16769060864 (15.62GiB)
  Error Correction support                        No
  Max memory allocation                           16769060864 (15.62GiB)
  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                        32768
  Global Memory cache line                        64 bytes
  Image support                                   Yes
    Max number of samplers per kernel             16
    Max size for 1D images from buffer            1048066304 pixels
    Max 1D or 2D image array size                 2048 images
    Max 2D image size                             16384x16384 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                               16769060864 (15.62GiB)
  Max constant buffer size                        16769060864 (15.62GiB)
  Max number of constant args                     8
  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                            Yes
  Prefer user sync for interop                    Yes
  printf() buffer size                            1048576 (1024KiB)
  Built-in kernels                                
  Device Available                                Yes
  Compiler Available                              Yes
  Linker Available                                Yes
  Device Extensions                               cl_khr_fp64 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_int64_base_atomics cl_khr_int64_extended_atomics

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_CPU)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  Success (1)
    Platform Name                                 Clover
    Device Name                                   AMD HAWAII (DRM 2.43.0, LLVM 3.7.0)
  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 HAWAII (DRM 2.43.0, LLVM 3.7.0)

ICD loader properties
  ICD loader Name                                 OpenCL ICD Loader
  ICD loader Vendor                               OCL Icd free software
  ICD loader Version                              2.2.7
  ICD loader Profile                              OpenCL 1.2

pocl installed by default in Fedora.

"CYCLES_OPENCL_TEST=NONE ./blender" it's ok. The problem disappears This problem touch the official build and not official (rpm Fedora 23). clinfo done : ``` $ clinfo Number of platforms 2 Platform Name Clover Platform Vendor Mesa Platform Version OpenCL 1.1 MESA 11.1.0-devel 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 0.12 Platform Profile FULL_PROFILE Platform Extensions cl_khr_icd Platform Extensions function suffix POCL Platform Name Clover Number of devices 1 Device Name AMD HAWAII (DRM 2.43.0, LLVM 3.7.0) Device Vendor AMD Device Vendor ID 0x1002 Device Version OpenCL 1.1 MESA 11.1.0-devel Driver Version 11.1.0-devel Device OpenCL C Version OpenCL C 1.1 Device Type GPU Device Profile FULL_PROFILE Max compute units 44 Max clock frequency 1040MHz Max work item dimensions 3 Max work item sizes 256x256x256 Max work group size 256 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 Correctly-rounded divide and sqrt operations No Address bits 32, Little-Endian Global memory size 1073741824 (1024MiB) Error Correction support No Max memory allocation 268435456 (256MiB) 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 None Image support No Local memory type Local Local memory size 32768 (32KiB) Max constant buffer size 268435456 (256MiB) Max number of constant args 16 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 Available Yes Compiler Available Yes Device 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_fp64 Platform Name Portable Computing Language Number of devices 1 Device Name pthread-Intel(R) Core(TM) i7-4771 CPU @ 3.50GHz Device Vendor GenuineIntel Device Vendor ID 0x8086 Device Version OpenCL 1.2 pocl Driver Version 0.12 Device OpenCL C Version OpenCL C 1.2 Device Type CPU, Default Device Profile FULL_PROFILE Max compute units 8 Max clock frequency 3900MHz Device Partition (core) Max number of sub-devices 8 Supported partition types equally, by counts Max work item dimensions 3 Max work item sizes 4096x4096x4096 Max work group size 4096 Preferred work group size multiple 8 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 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 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 Address bits 64, Little-Endian Global memory size 16769060864 (15.62GiB) Error Correction support No Max memory allocation 16769060864 (15.62GiB) 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 32768 Global Memory cache line 64 bytes Image support Yes Max number of samplers per kernel 16 Max size for 1D images from buffer 1048066304 pixels Max 1D or 2D image array size 2048 images Max 2D image size 16384x16384 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 16769060864 (15.62GiB) Max constant buffer size 16769060864 (15.62GiB) Max number of constant args 8 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 Yes Prefer user sync for interop Yes printf() buffer size 1048576 (1024KiB) Built-in kernels Device Available Yes Compiler Available Yes Linker Available Yes Device Extensions cl_khr_fp64 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_int64_base_atomics cl_khr_int64_extended_atomics 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_CPU) No devices found in platform clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU) Success (1) Platform Name Clover Device Name AMD HAWAII (DRM 2.43.0, LLVM 3.7.0) 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 HAWAII (DRM 2.43.0, LLVM 3.7.0) ICD loader properties ICD loader Name OpenCL ICD Loader ICD loader Vendor OCL Icd free software ICD loader Version 2.2.7 ICD loader Profile OpenCL 1.2 ``` pocl installed by default in Fedora.

Sergey Sharybin commented

2015-11-20 11:14:25 +01:00

Please do not inline the log output, attach them as a file. This will keep the report easier to follow.

Please show (as an attachment!) result of the following command:

strace ./blender --debug-cycles

(go to the user preferences to trigger the bug, so we'll gather all the logs from the event).

Please do not inline the log output, attach them as a file. This will keep the report easier to follow. Please show (as an attachment!) result of the following command: `strace ./blender --debug-cycles` (go to the user preferences to trigger the bug, so we'll gather all the logs from the event).

Sergey Sharybin self-assigned this 2015-11-26 22:35:45 +01:00

Sergey Sharybin commented

2015-11-26 22:35:45 +01:00

Managed to redo in the virtual machine. Seems somewhat similar to symbol conflict issue, but needs some more investigation.

blender-admin commented

2015-11-27 10:48:26 +01:00

This issue was referenced by bfaebeaee6

This issue was referenced by bfaebeaee64399e4c6da65b8aaa63e1a3cc3d000

Sergey Sharybin commented

2015-11-27 10:56:48 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2015-11-27 10:56:48 +01:00

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Could not create topdir for cache #46799