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Adept I
Adept I

FineGrainSVM fails on Kaveri

I have installed omega driver and SDK3.0(platform: ubuntu 14.10 && Kaveri), but when I try the example FineGrainSVM, it reports that "Unsupported device! Device does not support SVM Atomics". Then I use clinfo, it says "Fine grain buffer: yes, Fine grain system: no, Atomics: no".

Does it mean that Kaveri doesn't support atomic operations? If so, which platform will support atomic operations? I'm so confused...

Any help will be greatly appreciated.

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Staff
Staff

Re: FineGrainSVM fails on Kaveri

Currently, fine grained SVM with atomics is only supported on AMD Kaveri APU on Linux 64-bit OS. Are you using 64bit OS? Please share your setup details and clinfo output.

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Adept I
Adept I

Re: FineGrainSVM fails on Kaveri

Thank for your reply~

1. setup information:

OS: Linux 3.2.0-54-generic x86_64 Ubuntu14.10

X.org: 1.16.0

glibc: 2.19

2. clinfo

Number of platforms: 1

Platform Profile: FULL_PROFILE

Platform Version: OpenCL 2.0 AMD-APP (1642.5)

Platform Name: AMD Accelerated Parallel Processing

Platform Vendor: Advanced Micro Devices, Inc.

Platform Extensions: cl_khr_icd cl_amd_event_callback cl_amd_offline_devices

Platform Name: AMD Accelerated Parallel Processing

Number of devices: 2

Device Type: CL_DEVICE_TYPE_GPU

Vendor ID:1002h

Board name:AMD Radeon(TM) R7 Graphics

Device Topology: PCI[ B#0, D#1, F#0 ]

Max compute units:8

Max work items dimensions:3

Max work items[0]:256

Max work items[1]:256

Max work items[2]:256

Max work group size:256

Preferred vector width char:4

Preferred vector width short:2

Preferred vector width int:1

Preferred vector width long:1

Preferred vector width float:1

Preferred vector width double:1

Native vector width char:4

Native vector width short:2

Native vector width int:1

Native vector width long:1

Native vector width float:1

Native vector width double:1

Max clock frequency:720Mhz

Address bits:64

Max memory allocation:451411968

Image support:Yes

Max number of images read arguments:128

Max number of images write arguments:64

Max image 2D width:16384

Max image 2D height:16384

Max image 3D width:2048

Max image 3D height:2048

Max image 3D depth:2048

Max samplers within kernel:16

Max size of kernel argument:1024

Alignment (bits) of base address:2048

Minimum alignment (bytes) for any datatype:128

Single precision floating point capability

Denorms:No

Quiet NaNs:Yes

Round to nearest even:Yes

Round to zero:Yes

Round to +ve and infinity:Yes

IEEE754-2008 fused multiply-add:Yes

Cache type:Read/Write

Cache line size:64

Cache size:16384

Global memory size:1803550720

Constant buffer size:65536

Max number of constant args:8

Local memory typeSmiley Frustratedcratchpad

Local memory size:32768

Max pipe arguments:16

Max pipe active reservations:16

Max pipe packet size:451411968

Max global variable size:406270720

Max global variable preferred total size: 1803550720

Max read/write image args:64

Max on device events:1024

Queue on device max size:524288

Max on device queues:1

Queue on device preferred size:16384

SVM capabilities:

Coarse grain buffer:Yes

Fine grain buffer:Yes

Fine grain system:No

Atomics:No

Preferred platform atomic alignment:0

Preferred global atomic alignment:0

Preferred local atomic alignment:0

Kernel Preferred work group size multiple:64

Error correction support:0

Unified memory for Host and Device:1

Profiling timer resolution:1

Device endianess:Little

Available:Yes

Compiler available:Yes

Execution capabilities:

Execute OpenCL kernels:Yes

Execute native function:No

Queue on Host properties:

Out-of-Order:No

Profiling :Yes

Queue on Device properties:

Out-of-Order:Yes

Profiling :Yes

Platform ID:0x7fc554fdcfd0

NameSmiley Frustratedpectre

Vendor:Advanced Micro Devices, Inc.

Device OpenCL C versionSmiley SurprisedpenCL C 2.0

Driver version:1642.5 (VM)

Profile:FULL_PROFILE

VersionSmiley SurprisedpenCL 2.0 AMD-APP (1642.5)

Extensions:

cl_khr_fp64 cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics

cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics

cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes

cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_atomic_counters_32

cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops

cl_amd_media_ops2 cl_amd_popcnt cl_khr_image2d_from_buffer cl_khr_spir cl_khr_subgroups

cl_khr_gl_event cl_khr_depth_images

Device Type:CL_DEVICE_TYPE_CPU

Vendor ID:1002h

Board name:

Max compute units:4

Max work items dimensions:3

Max work items[0]:1024

Max work items[1]:1024

Max work items[2]:1024

Max work group size:1024

Preferred vector width char:16

Preferred vector width short:8

Preferred vector width int:4

Preferred vector width long:2

Preferred vector width float:8

Preferred vector width double:4

Native vector width char:16

Native vector width short:8

Native vector width int:4

Native vector width long:2

Native vector width float:8

Native vector width double:4

Max clock frequency:1700Mhz

Address bits:64

Max memory allocation:3909684224

Image support:Yes

Max number of images read arguments:128

Max number of images write arguments:64

Max image 2D width:8192

Max image 2D height:8192

Max image 3D width:2048

Max image 3D height:2048

Max image 3D depth:2048

Max samplers within kernel:16

Max size of kernel argument:4096

Alignment (bits) of base address:1024

Minimum alignment (bytes) for any datatype:128

Single precision floating point capability

Denorms:Yes

Quiet NaNs:Yes

Round to nearest even:Yes

Round to zero:Yes

Round to +ve and infinity:Yes

IEEE754-2008 fused multiply-add:Yes

Cache type:Read/Write

Cache line size:64

Cache size:16384

Global memory size:15638736896

Constant buffer size:65536

Max number of constant args:8

Local memory type:Global

Local memory size:32768

Max pipe arguments:16

Max pipe active reservations:16

Max pipe packet size:3909684224

Max global variable size:1879048192

Max global variable preferred total size: 1879048192

Max read/write image args:64

Max on device events:0

Queue on device max size:0

Max on device queues:0

Queue on device preferred size:0

SVM capabilities:

Coarse grain buffer:Yes

Fine grain buffer:Yes

Fine grain system:Yes

Atomics:Yes

Preferred platform atomic alignment:0

Preferred global atomic alignment:0

Preferred local atomic alignment:0

Kernel Preferred work group size multiple:1

Error correction support:0

Unified memory for Host and Device:1

Profiling timer resolution:1

Device endianess:Little

Available:Yes

Compiler available:Yes

Execution capabilities:

Execute OpenCL kernels:Yes

Execute native function:Yes

Queue on Host properties:

Out-of-Order:No

Profiling :Yes

Queue on Device properties:

Out-of-Order:No

Profiling :No

Platform ID:0x7fc554fdcfd0

Name:AMD A10-7850K Radeon R7, 12 Compute

Cores 4C+8G

Vendor:AuthenticAMD

Device OpenCL C versionSmiley SurprisedpenCL C 1.2

Driver version:1642.5 (sse2,avx,fma4)

Profile:FULL_PROFILE

VersionSmiley SurprisedpenCL 1.2 AMD-APP (1642.5)

Extensions:

cl_khr_fp64 cl_amd_fp64

cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics

cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics

cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes

cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_device_fission

cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops

cl_amd_media_ops2 cl_amd_popcnt cl_khr_spir cl_khr_gl_event

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Adept I
Adept I

Re: FineGrainSVM fails on Kaveri

Does anyone know the reason?

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Staff
Staff

Re: FineGrainSVM fails on Kaveri

Please check whether IOMMU option (in BIOS) is enabled or not. If not, you need to enable this option manually.

Regards,

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Adept I
Adept I

Re: FineGrainSVM fails on Kaveri

Thank you so much!

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