AMD 480 on Ubuntu 20.04.x

[nonlin-lin-chaos-order-etc-etal]

kernel/gostcoin_nostatic.cl is a copy of kernel/gostcoin.cl with added lines:

// https://answers.opencv.org/question/181973/33-on-opencl-11-device-static-storage-specifier/
#ifdef cl_clang_storage_class_specifiers
    #pragma OPENCL EXTENSION cl_clang_storage_class_specifiers : enable
#endif

static_ext.diff.txt

# file `which clinfo`
/usr/bin/clinfo: symbolic link to /opt/AMDAPPSDK-3.0/bin/x86_64/clinfo
# clinfo
Number of platforms:				 2
  Platform Profile:				 FULL_PROFILE
  Platform Version:				 OpenCL 1.1 Mesa 21.0.3
  Platform Name:				 Clover
  Platform Vendor:				 Mesa
  Platform Extensions:				 cl_khr_icd
  Platform Profile:				 FULL_PROFILE
  Platform Version:				 OpenCL 1.2 pocl 1.4, None+Asserts, LLVM 9.0.1, RELOC, SLEEF, DISTRO, POCL_DEBUG
  Platform Name:				 Portable Computing Language
  Platform Vendor:				 The pocl project
  Platform Extensions:				 cl_khr_icd


  Platform Name:				 Clover
Number of devices:				 1
  Device Type:					 CL_DEVICE_TYPE_GPU
  Vendor ID:					 1002h
  Max compute units:				 36
  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:			 16
  Preferred vector width short:			 8
  Preferred vector width int:			 4
  Preferred vector width long:			 2
  Preferred vector width float:			 4
  Preferred vector width double:		 2
  Native vector width char:			 16
  Native vector width short:			 8
  Native vector width int:			 4
  Native vector width long:			 2
  Native vector width float:			 4
  Native vector width double:			 2
  Max clock frequency:				 1291Mhz
  Address bits:					 64
  Max memory allocation:			 6871947673
  Image support:				 No
  Max size of kernel argument:			 1024
  Alignment (bits) of base address:		 32768
  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:				 No
    Round to +ve and infinity:			 No
    IEEE754-2008 fused multiply-add:		 No
  Cache type:					 None
  Cache line size:				 0
  Cache size:					 0
  Global memory size:				 8589934592
  Constant buffer size:				 67108864
  Max number of constant args:			 16
  Local memory type:				 Scratchpad
  Local memory size:				 32768
  Kernel Preferred work group size multiple:	 64
  Error correction support:			 0
  Unified memory for Host and Device:		 0
  Profiling timer resolution:			 0
  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
  Platform ID:					 0x7f9fb9f68aa0
  Name:						 AMD Radeon (TM) RX 480 Graphics (POLARIS10, DRM 3.35.0, 5.4.0-92-generic, LLVM 12.0.0)
  Vendor:					 AMD
  Device OpenCL C version:			 OpenCL C 1.1 
  Driver version:				 21.0.3
  Profile:					 FULL_PROFILE
  Version:					 OpenCL 1.1 Mesa 21.0.3
  Extensions:					 cl_khr_byte_addressable_store 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_fp64 cl_khr_extended_versioning


  Platform Name:				 Portable Computing Language
Number of devices:				 1
  Device Type:					 CL_DEVICE_TYPE_CPU
  ...

shell scripts and logs in the next comments

[nonlin-lin-chaos-order-etc-etal]

sgminer_nostatic.log
sgminer_nostatic.sh.txt
sgminer_orig.log
sgminer_orig.sh.txt

[nonlin-lin-chaos-order-etc-etal]

# lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.3 LTS
Release:	20.04
Codename:	focal
#