Topic: Assess system performance stop @85%

Hi, "part of the team" bug report: it seems in SVP4 (was ok in SVP 3.7) "assess system performance" always stops around 85%.
and the log reports only the CPU rating (and not GPU one).
Sometimes it triggers a TDR (driver stopped etc.) too-
Playback instead works ok, with GPU enabled. It's only the benchmark that doesn't work.

Log

12:05:58.159 [i]: Performance: motion vectors estimation = 2084
12:06:08.675 [i]: Performance: CPU-based frame rendering = 2675

GPU

  Device Name                                     Intel(R) Iris(TM) Pro Graphics 5200
  Device Vendor                                   Intel(R) Corporation
  Device Vendor ID                                0x8086
  Device Version                                  OpenCL 1.2 
  Driver Version                                  10.18.15.4279
  Device OpenCL C Version                         OpenCL C 1.2 
  Device Type                                     GPU
  Device Profile                                  FULL_PROFILE
  Max compute units                               40
  Max clock frequency                             1400MHz
  Device Partition                                (core)
    Max number of sub-devices                     0
    Supported partition types                     None
    Supported affinity domains                    None
  Max work item dimensions                        3
  Max work item sizes                             512x512x512
  Max work group size                             512
  Preferred work group size multiple              32
  Preferred / native vector sizes                 
    char                                                 1 / 1       
    short                                                1 / 1       
    int                                                  1 / 1       
    long                                                 1 / 1       
    half                                                 0 / 0        (n/a)
    float                                                1 / 1       
    double                                               0 / 0        (n/a)
  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                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               No
    Support is emulated in software               No
    Correctly-rounded divide and sqrt operations  Yes
  Double-precision Floating-point support         (n/a)
  Address bits                                    64, Little-Endian
  Global memory size                              1561123226 (1.454GiB)
  Error Correction support                        No
  Max memory allocation                           390280806 (372.2MiB)
  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                        <printDeviceInfo:88: get CL_DEVICE_GLOBAL_MEM_CACHE_SIZE : error -30>
  Global Memory cache line                        64 bytes
  Image support                                   Yes
    Max number of samplers per kernel             16
    Max size for 1D images from buffer            24392550 pixels
    Max 1D or 2D image array size                 2048 images
    Base address alignment for 2D image buffers   4096 bytes
    Pitch alignment for 2D image buffers          64 bytes
    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                               Local
  Local memory size                               65536 (64KiB)
  Max constant buffer size                        65536 (64KiB)
  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
  Number of simulataneous interops (Intel)        1
  Profiling timer resolution                      80ns
  Execution capabilities                          
    Run OpenCL kernels                            Yes
    Run native kernels                            No
    SPIR versions                                 1.2 
  printf() buffer size                            4194304 (4MiB)
  Built-in kernels                                block_motion_estimate_intel;block_advanced_motion_estimate_check_intel
  Motion Estimation accelerator version    (Intel)   2
  Device Available                                Yes
  Compiler Available                              Yes
  Linker Available                                Yes
  Device Extensions                               cl_intel_accelerator cl_intel_advanced_motion_estimation cl_intel_ctz cl_intel_d3d11_nv12_media_sharing cl_intel_dx9_media_sharing cl_intel_motion_estimation cl_intel_simultaneous_sharing cl_intel_subgroups cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_d3d10_sharing cl_khr_d3d11_sharing cl_khr_depth_images cl_khr_dx9_media_sharing cl_khr_gl_depth_images cl_khr_gl_event cl_khr_gl_msaa_sharing cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_gl_sharing cl_khr_icd cl_khr_image2d_from_buffer cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_spir 

Re: Assess system performance stop @85%

berga_d wrote:

Driver Version 10.18.15.4279

Try the latest Iris driver. Now it is 15.40.10.4300

Re: Assess system performance stop @85%

Sometimes it triggers a TDR (driver stopped etc.) too

You do understand this's not normal, right? smile

4 (edited by berga_d 12-11-2015 15:14:09)

Re: Assess system performance stop @85%

Thanks, I know what a TDR is: in my case it happens only during the benchmark and not during playback.

EDIT
Ok there are two different problems:
1-The TDR was caused by a forgotten overclock, that was stable during playback but not in benchmark.
I removed it, and now it doesn't TDR (and crash) anymore. (This is the reason the TDR happened only "sometimes")

2-Still the benchmark always stops exactly at 84%.
It's not "freezed": both system load graph and the "green animation" over the progress bar continue to work.
Both CPU/GPU usage are near zero after it stops.

Can I help you in any way?

Re: Assess system performance stop @85%

SVP is a user-level application, it has NO control over hardware, it can't just "call a TDR", it can't stop a video driver.
If the video driver stops this means either a bug in driver itself of some hardware issues (= overheating).

Re: Assess system performance stop @85%

It was related to Windows 10 1511 (November Update) and Intel drivers.
New Intel .4326 Beta driver works perfectly.