Intel^® VTune^™ Profiler 2022.2.0

Elapsed Time: 109.744s

GPU Time, % of Elapsed time: 87.5%

Top Hotspots when GPU was idle:

Function	Module	CPU Time
tbb::detail::r1::market::create_one_job	libtbb.so.12.6	3.541s
[Outside any known module]	[Unknown]	2.161s
Intel::OpenCL::Utils::AtomicCounter::operator long	libcpu_device_emu.so.2022.13.3.0	1.229s
[Skipped stack frame(s)]	[Unknown]	0.975s
Intel::OpenCL::CPUDevice::AffinitizeThreads::ExecuteIteration	libcpu_device_emu.so.2022.13.3.0	0.723s
[Others]	N/A	6.603s

Hottest Host Tasks:
Host Task Task Time % of Elapsed Time(%) Task Count
clWaitForEvents 95.340s 86.9% 42
clCreateContext 3.844s 3.5% 3
tbb_parallel_for 3.738s 3.4% 38
tbb_custom 0.297s 0.3% 4
clBuildProgram 0.109s 0.1% 1
[Others] 0.020s 0.0% 74

Hottest GPU Computing Tasks:

Computing Task	Total Time	Execution Time	% of Total Time(%)	SIMD Width	Peak EU Threads Occupancy(%)	EU Threads Occupancy(%)	SIMD Utilization(%)
dppyPy_dppy_py_devfn_gaussian_5F_weighted_5F_pair_5F_counts_2E_count_5F_weighted_5F_pairs_5F_3d_5F_intel_5F_no_5F_slm_5F_ker_24_1_2E_int64_2E_int64_2E_int64_2E_int64_2E_array_28_float32_2C__20_1d_2C__20_C_29__2E_array_28_float32_2C__20_1d_2C__20_C_29__2E_array_28_float32_2C__20_1d_2C__20_C_29__2E_array_28_float32_2C__20_1d_2C__20_C_29__2E_array_28_float32_2C__20_1d_2C__20_C_29__2E_array_28_float32_2C__20_1d_2C__20_C_29__2E_array_28_float32_2C__20_1d_2C__20_C_29__2E_array_28_float32_2C__20_1d_2C__20_C_29__2E_array_28_float32_2C__20_1d_2C__20_C_29__2E_array_28_float32_2C__20_1d_2C__20_C_29_	94.278s	94.260s	100.0%	8	100.0%	94.8%	100.0%
[Outside any task]	0.001s	0s	0.0%

Collection and Platform Info:
- Application Command Line: python "run_gpairs.py" "--steps" "1" "--size" "65536"
- Operating System: 5.4.0-80-generic DISTRIB_ID=Ubuntu DISTRIB_RELEASE=20.04 DISTRIB_CODENAME=focal DISTRIB_DESCRIPTION="Ubuntu 20.04.4 LTS"
- Computer Name: s001-n159
- Result Size: 1.4 GB
- Collection start time: 23:41:20 04/06/2022 UTC
- Collection stop time: 23:43:09 04/06/2022 UTC
- Collector Type: Event-based sampling driver,Driverless Perf system-wide sampling,User-mode sampling and tracing
- CPU:
  - Name: Intel(R) microarchitecture code named Coffeelake
  - Frequency: 3.696 GHz
  - Logical CPU Count: 12
- GPU:
  - Name: HD Graphics P630
  - Vendor: Intel Corporation
  - EU Count: 24
  - Max EU Thread Count: 7
  - Max Core Frequency: 1.200 GHz
  - GPU OpenCL Info:
    Version: OpenCL 3.0 NEO
    Max Compute Units: 24
    Max Work Group Size: 256
    Local Memory: 65.5 KB
    SVM Capabilities: