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Multi-GPU readouts not working #124

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Multi-GPU readouts not working#124
@Solaris17

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@Solaris17
Solaris17
opened on Sep 5, 2025

Hello!

I compiled version v247 as I was using an older version of Sample_ControlAPP.cpp.

However I noticed what appears to be an issue in which it will not enumerate all GPUs detected.

This is the output of the "new" v247:

PS C:\Users\Test-Server\Downloads> .\Intel-API.exe
IGCL Version in platform: 1.1
ctlEnumerateDevices returned 2 adapters
ctlEnumerateDevices returned 2 adapters


*** Testing adapter #0 ***
Adapter ID 99672
Intel Graphics Driver Version : 32.0.101.7028
GOP Version : 20.0.1068
Intel Adapter Name: Intel(R) Arc(TM) A310 LP Graphics
Vendor ID: 0x8086
Device ID: 0x56A6
SubSys id 0x4019
SubSys Vendor id 0x172F
Rev ID: 0x5
Graphics Frequency: 1000MHz
num_eus_per_sub_slice: 16
num_slices: 2
num_sub_slices_per_slice: 3
num_xe_cores: 6
Graphics HW type: External GFX
adapter_bdf.bus:201
adapter_bdf.device:0
adapter_bdf.function:0
Couldn't get P0 from L0. Freq domains = 0, Error = 0x40000019
ctlEnumerateDisplayOutputs returned 0 encoders
Overrall test result is 0x0
PS C:\Users\Test-Server\Downloads>

This correctly detects an A310 in the system. However; there are multiple GPUs in this system.

The following is the older build (what I believe to be v207 or v210)

PS C:\Users\Test-Server\Downloads> .\Intel-API-Orig.exe
IGCL Version in platform: 1.1
ctlEnumerateDevices returned 2 adapters
ctlEnumerateDevices returned 2 adapters


*** Testing adapter #0 ***
Adapter ID 99672
Intel Graphics Driver Version : 32.0.101.7028
GOP Version : 20.0.1068
Intel Adapter Name: Intel(R) Arc(TM) A310 LP Graphics
Vendor ID: 0x8086
Device ID: 0x56A6
SubSys id 0x4019
SubSys Vendor id 0x172F
Rev ID: 0x5
Graphics Frequency: 1000MHz
num_eus_per_sub_slice: 16
num_slices: 2
num_sub_slices_per_slice: 3
Graphics HW type: External GFX
adapter_bdf.bus:201
adapter_bdf.device:0
adapter_bdf.function:0
Couldn't get P0 from L0. Freq domains = 0, Error = 0x40000019
ctlEnumerateDisplayOutputs returned 0 encoders
ctlGetSupported3DCapabilities returned success. No of gaming features = 8
3D Feature supported: Frame limit (2)
  Feature conflict mask flag: 0x3
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX11
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  Min possible value: 30
  Max possible value: 300
  Step size: 1
  Default value: 60
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 2
3D Feature supported: CMAA (4)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 4
3D Feature supported: Gaming flip modes (9)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  Default value: 1
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_APPLICATION_DEFAULT
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_VSYNC_OFF
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_VSYNC_ON
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_SMOOTH_SYNC
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_CAPPED_FPS
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 9
3D Feature supported: Application profile (11)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: Yes
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_LIVE_CHANGE
  pCaps->SupportedTierTypes = Compatibility and Performance
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x0 for FeatureType = 11
3D Feature supported: Emulated typed 64 bit atomics (13)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 13
3D Feature supported: global or per app settings (15)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: Yes
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_LIVE_CHANGE
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 15
3D Feature supported: No Name (16)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX11
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 16
3D Feature supported: No Name (17)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 17


*** Testing adapter #1 ***
Adapter ID 98381
Intel Graphics Driver Version : 32.0.101.7028
GOP Version : 20.0.1068
Intel Adapter Name: Intel(R) Arc(TM) A380 Graphics
Vendor ID: 0x8086
Device ID: 0x56A5
SubSys id 0x6004
SubSys Vendor id 0x1849
Rev ID: 0x5
Graphics Frequency: 0MHz
num_eus_per_sub_slice: 16
num_slices: 2
num_sub_slices_per_slice: 4
Graphics HW type: External GFX
adapter_bdf.bus:25
adapter_bdf.device:0
adapter_bdf.function:0
Couldn't get P0 from L0. Freq domains = 0, Error = 0x40000019
ctlEnumerateDisplayOutputs returned 0 encoders
ctlGetSupported3DCapabilities returned success. No of gaming features = 8
3D Feature supported: Frame limit (2)
  Feature conflict mask flag: 0x3
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX11
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  Min possible value: 30
  Max possible value: 300
  Step size: 1
  Default value: 60
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 2
3D Feature supported: CMAA (4)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 4
3D Feature supported: Gaming flip modes (9)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  Default value: 1
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_APPLICATION_DEFAULT
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_VSYNC_OFF
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_VSYNC_ON
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_SMOOTH_SYNC
  pFeatureDetails->Value.EnumType.SupportedTypes = CTL_GAMING_FLIP_MODE_FLAG_CAPPED_FPS
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 9
3D Feature supported: Application profile (11)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: Yes
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_LIVE_CHANGE
  pCaps->SupportedTierTypes = Compatibility and Performance
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x0 for FeatureType = 11
3D Feature supported: Emulated typed 64 bit atomics (13)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 13
3D Feature supported: global or per app settings (15)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: Yes
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_VULKAN
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_LIVE_CHANGE
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 15
3D Feature supported: No Name (16)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX11
  pFeatureDetails->FeatureMiscSupport = CTL_3D_FEATURE_MISC_FLAG_DX12
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 16
3D Feature supported: No Name (17)
  Feature conflict mask flag: 0x0
  Supported per application: 1
  Supports live change: No
  Default value: 0
Calling ctlGetSet3DFeature()
ctlGetSet3DFeature returned 0x40000014 for FeatureType = 17
Overrall test result is 0x0
PS C:\Users\Test-Server\Downloads>

The older build seems to contain more feature information, but ultimately what is more important is that it is properly enumerating all of the detected devices.

Are there -flags required now?

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