clpeak w/ MoltenVK and clspv on M1

clpeak.txt

% ./clpeak                                                                                 
[mvk-info] MoltenVK version 1.1.5, supporting Vulkan version 1.1.189.
	The following 72 Vulkan extensions are supported:
		VK_KHR_16bit_storage v1
		VK_KHR_8bit_storage v1
		VK_KHR_bind_memory2 v1
		VK_KHR_create_renderpass2 v1
		VK_KHR_dedicated_allocation v3
		VK_KHR_depth_stencil_resolve v1
		VK_KHR_descriptor_update_template v1
		VK_KHR_device_group v4
		VK_KHR_device_group_creation v1
		VK_KHR_driver_properties v1
		VK_KHR_external_fence v1
		VK_KHR_external_fence_capabilities v1
		VK_KHR_external_memory v1
		VK_KHR_external_memory_capabilities v1
		VK_KHR_external_semaphore v1
		VK_KHR_external_semaphore_capabilities v1
		VK_KHR_get_memory_requirements2 v1
		VK_KHR_get_physical_device_properties2 v2
		VK_KHR_get_surface_capabilities2 v1
		VK_KHR_imageless_framebuffer v1
		VK_KHR_image_format_list v1
		VK_KHR_maintenance1 v2
		VK_KHR_maintenance2 v1
		VK_KHR_maintenance3 v1
		VK_KHR_multiview v1
		VK_KHR_portability_subset v1
		VK_KHR_push_descriptor v2
		VK_KHR_relaxed_block_layout v1
		VK_KHR_sampler_mirror_clamp_to_edge v3
		VK_KHR_sampler_ycbcr_conversion v14
		VK_KHR_shader_draw_parameters v1
		VK_KHR_shader_float16_int8 v1
		VK_KHR_shader_subgroup_extended_types v1
		VK_KHR_storage_buffer_storage_class v1
		VK_KHR_surface v25
		VK_KHR_swapchain v70
		VK_KHR_swapchain_mutable_format v1
		VK_KHR_timeline_semaphore v2
		VK_KHR_uniform_buffer_standard_layout v1
		VK_KHR_variable_pointers v1
		VK_EXT_debug_marker v4
		VK_EXT_debug_report v10
		VK_EXT_debug_utils v2
		VK_EXT_descriptor_indexing v2
		VK_EXT_fragment_shader_interlock v1
		VK_EXT_hdr_metadata v2
		VK_EXT_host_query_reset v1
		VK_EXT_image_robustness v1
		VK_EXT_inline_uniform_block v1
		VK_EXT_memory_budget v1
		VK_EXT_metal_surface v1
		VK_EXT_post_depth_coverage v1
		VK_EXT_private_data v1
		VK_EXT_robustness2 v1
		VK_EXT_scalar_block_layout v1
		VK_EXT_shader_stencil_export v1
		VK_EXT_shader_viewport_index_layer v1
		VK_EXT_subgroup_size_control v2
		VK_EXT_swapchain_colorspace v4
		VK_EXT_texel_buffer_alignment v1
		VK_EXT_texture_compression_astc_hdr v1
		VK_EXT_vertex_attribute_divisor v3
		VK_AMD_gpu_shader_half_float v2
		VK_AMD_negative_viewport_height v1
		VK_AMD_shader_image_load_store_lod v1
		VK_AMD_shader_trinary_minmax v1
		VK_IMG_format_pvrtc v1
		VK_INTEL_shader_integer_functions2 v1
		VK_GOOGLE_display_timing v1
		VK_MVK_macos_surface v3
		VK_MVK_moltenvk v32
		VK_NV_glsl_shader v1
[mvk-info] GPU device:
		model: Apple M1
		type: Integrated
		vendorID: 0x106b
		deviceID: 0xa140
		pipelineCacheUUID: 00002779-0400-03EF-0000-000000000000
	supports the following Metal Versions, GPU's and Feature Sets:
		Metal Shading Language 2.3
		GPU Family Apple 7
		GPU Family Apple 6
		GPU Family Apple 5
		GPU Family Apple 4
		GPU Family Apple 3
		GPU Family Apple 2
		GPU Family Apple 1
		GPU Family Mac 2
		GPU Family Mac 1
		GPU Family Common 3
		GPU Family Common 2
		GPU Family Common 1
		macOS GPU Family 2 v1
		macOS GPU Family 1 v4
		macOS GPU Family 1 v3
		macOS GPU Family 1 v2
		macOS GPU Family 1 v1
[mvk-info] Created VkInstance for Vulkan version 1.0.0, as requested by app, with the following 2 Vulkan extensions enabled:
		VK_KHR_get_physical_device_properties2 v2
		VK_EXT_debug_report v10
[mvk-info] Using MTLEvent for Vulkan semaphores.
[mvk-info] Created VkDevice to run on GPU Apple M1 with the following 6 Vulkan extensions enabled:
		VK_KHR_16bit_storage v1
		VK_KHR_8bit_storage v1
		VK_KHR_driver_properties v1
		VK_KHR_shader_float16_int8 v1
		VK_KHR_uniform_buffer_standard_layout v1
		VK_KHR_variable_pointers v1

Platform: clvk
  Device: Apple M1
    Driver version  : 1.2 CLVK on Vulkan v1.1.189 driver 10105 (Macintosh)
    Compute units   : 1
    Clock frequency : 0 MHz

    Global memory bandwidth (GBPS)
      float   : 55.63
      float2  : 57.66
      float4  : 57.50
      float8  : 57.88
      float16 : 62.41

    Single-precision compute (GFLOPS)
      float   : 1267.18
      float2  : 1502.12
      float4  : 1525.60
      float8  : 892.10
      float16 : 1470.11

    Half-precision compute (GFLOPS)
      half   : 1333.62
      half2  : 1508.59
      half4  : 1591.51
      half8  : 1525.85
      half16 : 1423.71

    No double precision support! Skipped

    Integer compute (GIOPS)
      int   : 472.07
      int2  : 467.69
      int4  : 469.41
      int8  : 476.42
      int16 : 461.98

    Integer compute Fast 24bit (GIOPS)
      int   : 480.22
      int2  : 478.74
      int4  : 437.78
      int8  : 474.67
      int16 : 475.28

    Transfer bandwidth (GBPS)
      enqueueWriteBuffer              : 28.62
      enqueueReadBuffer               : 28.93
      enqueueWriteBuffer non-blocking : 28.99
      enqueueReadBuffer non-blocking  : 28.97
      enqueueMapBuffer(for read)      : 550636.56
        memcpy from mapped ptr        : 28.75
      enqueueUnmap(after write)       : 727960.19
        memcpy to mapped ptr          : 28.96

    Kernel launch latency : 6.92 us