Package org.lwjgl.vulkan

Class AMDShaderCoreProperties

java.lang.Object

org.lwjgl.vulkan.AMDShaderCoreProperties

public final class AMDShaderCoreProperties
extends Object

This extension exposes shader core properties for a target physical device through the VK_KHR_get_physical_device_properties2 extension. Please refer to the example below for proper usage.

Examples

This example retrieves the shader core properties for a physical device.

 extern VkInstance       instance;
 
 PFN_vkGetPhysicalDeviceProperties2 pfnVkGetPhysicalDeviceProperties2 =
     reinterpret_cast<PFN_vkGetPhysicalDeviceProperties2>
     (vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceProperties2") );
 
 VkPhysicalDeviceProperties2             general_props;
 VkPhysicalDeviceShaderCorePropertiesAMD shader_core_properties;
 
 shader_core_properties.pNext = nullptr;
 shader_core_properties.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_CORE_PROPERTIES_AMD;
 
 general_props.pNext = &shader_core_properties;
 general_props.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
 
 // After this call, shader_core_properties has been populated
 pfnVkGetPhysicalDeviceProperties2(device, &general_props);
 
 printf("Number of shader engines: %d\n",
     m_shader_core_properties.shader_engine_count =
     shader_core_properties.shaderEngineCount;
 printf("Number of shader arrays: %d\n",
     m_shader_core_properties.shader_arrays_per_engine_count =
     shader_core_properties.shaderArraysPerEngineCount;
 printf("Number of CUs per shader array: %d\n",
     m_shader_core_properties.compute_units_per_shader_array =
     shader_core_properties.computeUnitsPerShaderArray;
 printf("Number of SIMDs per compute unit: %d\n",
     m_shader_core_properties.simd_per_compute_unit =
     shader_core_properties.simdPerComputeUnit;
 printf("Number of wavefront slots in each SIMD: %d\n",
     m_shader_core_properties.wavefronts_per_simd =
     shader_core_properties.wavefrontsPerSimd;
 printf("Number of threads per wavefront: %d\n",
     m_shader_core_properties.wavefront_size =
     shader_core_properties.wavefrontSize;
 printf("Number of physical SGPRs per SIMD: %d\n",
     m_shader_core_properties.sgprs_per_simd =
     shader_core_properties.sgprsPerSimd;
 printf("Minimum number of SGPRs that can be allocated by a wave: %d\n",
     m_shader_core_properties.min_sgpr_allocation =
     shader_core_properties.minSgprAllocation;
 printf("Number of available SGPRs: %d\n",
     m_shader_core_properties.max_sgpr_allocation =
     shader_core_properties.maxSgprAllocation;
 printf("SGPRs are allocated in groups of this size: %d\n",
     m_shader_core_properties.sgpr_allocation_granularity =
     shader_core_properties.sgprAllocationGranularity;
 printf("Number of physical VGPRs per SIMD: %d\n",
     m_shader_core_properties.vgprs_per_simd =
     shader_core_properties.vgprsPerSimd;
 printf("Minimum number of VGPRs that can be allocated by a wave: %d\n",
     m_shader_core_properties.min_vgpr_allocation =
     shader_core_properties.minVgprAllocation;
 printf("Number of available VGPRs: %d\n",
     m_shader_core_properties.max_vgpr_allocation =
     shader_core_properties.maxVgprAllocation;
 printf("VGPRs are allocated in groups of this size: %d\n",
     m_shader_core_properties.vgpr_allocation_granularity =
     shader_core_properties.vgprAllocationGranularity;

VK_AMD_shader_core_properties

Name String

VK_AMD_shader_core_properties

Extension Type

Device extension

Registered Extension Number

186

Revision

2

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2

Contact

• Martin Dinkov mdinkov

Other Extension Metadata

Last Modified Date

2019-06-25

IP Status

No known IP claims.

Contributors

• Martin Dinkov, AMD
• Matthaeus G. Chajdas, AMD

Field Summary

Fields

Modifier and Type	Field	Description
static final String	VK_AMD_SHADER_CORE_PROPERTIES_EXTENSION_NAME	The extension name.
static final int	VK_AMD_SHADER_CORE_PROPERTIES_SPEC_VERSION	The extension specification version.
static final int	VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_CORE_PROPERTIES_AMD	Extends VkStructureType.

Method Summary

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

VK_AMD_SHADER_CORE_PROPERTIES_SPEC_VERSION

public static final int VK_AMD_SHADER_CORE_PROPERTIES_SPEC_VERSION

The extension specification version.

See Also:

• Constant Field Values

VK_AMD_SHADER_CORE_PROPERTIES_EXTENSION_NAME

public static final String VK_AMD_SHADER_CORE_PROPERTIES_EXTENSION_NAME

The extension name.

See Also:

• Constant Field Values

VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_CORE_PROPERTIES_AMD

public static final int VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_CORE_PROPERTIES_AMD

Extends VkStructureType.

See Also:

• Constant Field Values