Add AMDGPU driver for Ubuntu 20.04.

debugging/002-Ubuntu-20_04/01-AMDGPU-23_10_3.md

@@ -48,6 +48,25 @@ $ sudo amdgpu-install --usecase=opencl --no-dkms --opencl=rocr
         Kernel modules: radeon, amdgpu
 ```
 
+## CL Info Not Detecting
+
+Both with and without `sudo`
+
+```
+$ sudo clinfo -l
+[sudo] password for arcologos: 
+Number of platforms:				 1
+  Platform Profile:				 FULL_PROFILE
+  Platform Version:				 OpenCL 2.1 AMD-APP (3558.0)
+  Platform Name:				 AMD Accelerated Parallel Processing
+  Platform Vendor:				 Advanced Micro Devices, Inc.
+  Platform Extensions:				 cl_khr_icd cl_amd_event_callback 
+
+
+  Platform Name:				 AMD Accelerated Parallel Processing
+Number of devices:				 0
+```
+
 ## Daemon Messages
 
 ```
@@ -65,3 +84,7 @@ $ sudo dmesg
 ## Rebooting
 
 To see if I can get the `amdgpu` kernel module to be used.
+
+## After Rebooting
+
+No, `clinfo` doesn't show the GPU available for computer and `lspci -k` shows `radeon` being used.

debugging/002-Ubuntu-20_04/02-Kernel-Boot-Params.md

@@ -0,0 +1,152 @@
+# Kernel Boot Params
+
+## Updating Grub
+
+To select the `AMDGPU` driver / module.
+
+https://askubuntu.com/a/1314983
+
+I'll add the following flags to the appropriate line in `/etc/default/grub`
+
+```
+GRUB_CMDLINE_LINUX_DEFAULT="radeon.si_support=0 radeon.cik_support=0 amdgpu.si_support=1 amdgpu.cik_support=1 amdgpu.dc=1 amdgpu.dpm=1 amdgpu.modeset=1"
+```
+
+Then run
+
+```
+sudo update-grub
+```
+
+and reboot, selecting Ubuntu 20.04 per this branch of the debugging tree.
+
+## Rebooting
+
+After rebooting, `OpenCL` detects the GPU! But it hangs and does not return from the call
+
+```
+sudo clinfo -l
+```
+
+The call without the `sudo` yields just the CPU and `Number of devices: 0` as before.
+
+Here's the glorious output:
+
+```
+$ sudo clinfo -l
+[sudo] password for arcologos: 
+Number of platforms:				 1
+  Platform Profile:				 FULL_PROFILE
+  Platform Version:				 OpenCL 2.1 AMD-APP (3558.0)
+  Platform Name:				 AMD Accelerated Parallel Processing
+  Platform Vendor:				 Advanced Micro Devices, Inc.
+  Platform Extensions:				 cl_khr_icd cl_amd_event_callback 
+
+
+  Platform Name:				 AMD Accelerated Parallel Processing
+Number of devices:				 1
+  Device Type:					 CL_DEVICE_TYPE_GPU
+  Vendor ID:					 1002h
+  Board name:					 AMD Radeon (TM) R9 390 Series
+  Device Topology:				 PCI[ B#3, D#0, F#0 ]
+  Max compute units:				 40
+  Max work items dimensions:			 3
+    Max work items[0]:				 1024
+    Max work items[1]:				 1024
+    Max work items[2]:				 1024
+  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:				 1005Mhz
+  Address bits:					 64
+  Max memory allocation:			 7301444400
+  Image support:				 Yes
+  Max number of images read arguments:		 128
+  Max number of images write arguments:		 8
+  Max image 2D width:				 16384
+  Max image 2D height:				 16384
+  Max image 3D width:				 16384
+  Max image 3D height:				 16384
+  Max image 3D depth:				 8192
+  Max samplers within kernel:			 26545
+  Max size of kernel argument:			 1024
+  Alignment (bits) of base address:		 1024
+  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:				 8589934592
+  Constant buffer size:				 7301444400
+  Max number of constant args:			 8
+  Local memory type:				 Scratchpad
+  Local memory size:				 65536
+  Max pipe arguments:				 16
+  Max pipe active reservations:			 16
+  Max pipe packet size:				 3006477104
+  Max global variable size:			 7301444400
+  Max global variable preferred total size:	 8589934592
+  Max read/write image args:			 64
+  Max on device events:				 1024
+  Queue on device max size:			 8388608
+  Max on device queues:				 1
+  Queue on device preferred size:		 262144
+  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
+```
+
+## Add User to Video Group
+
+Per this response
+
+https://github.com/RadeonOpenCompute/ROCm/issues/482#issuecomment-410551357 
+
+I add the current user to the `video` group. I forget where I first read that this was necessary, but next also
+is to try the `render` group.
+
+```
+sudo usermod -G video -a $USER
+
+```
+
+## Logging Out and Back In
+
+The groupd `video` doesn't show up in the group list,
+
+```
+$ id
+uid=1000(arcologos) gid=1000(arcologos) groups=1000(arcologos),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),120(lpadmin),133(lxd),134(sambashare)
+```
+
+but now we get an additional line at the end of `clinfo` before it hangs.
+
+```
+ERROR: clCreateKernel(-6)
+```
+
+Next is to try adding to the `render` group, and then installing
+`libnuma-dev` as recommended in the above GitHub Issue thread comment.
+
+## Add User to Render Group

debugging/002-Ubuntu-20_04/025-Tempaa

@@ -0,0 +1,133 @@
+# Kernel Boot Params
+
+## Updating Grub
+
+To select the `AMDGPU` driver / module.
+
+https://askubuntu.com/a/1314983
+
+I'll add the following flags to the appropriate line in `/etc/default/grub`
+
+```
+GRUB_CMDLINE_LINUX_DEFAULT="radeon.si_support=0 radeon.cik_support=0 amdgpu.si_support=1 amdgpu.cik_support=1 amdgpu.dc=1 amdgpu.dpm=1 amdgpu.modeset=1"
+```
+
+Then run
+
+```
+sudo update-grub
+```
+
+and reboot, selecting Ubuntu 20.04 per this branch of the debugging tree.
+
+## Rebooting
+
+After rebooting, `OpenCL` detects the GPU! But it hangs and does not return from the call
+
+```
+sudo clinfo -l
+```
+
+The call without the `sudo` yields just the CPU and `Number of devices: 0` as before.
+
+Here's the glorious output:
+
+```
+$ sudo clinfo -l
+[sudo] password for arcologos: 
+Number of platforms:				 1
+  Platform Profile:				 FULL_PROFILE
+  Platform Version:				 OpenCL 2.1 AMD-APP (3558.0)
+  Platform Name:				 AMD Accelerated Parallel Processing
+  Platform Vendor:				 Advanced Micro Devices, Inc.
+  Platform Extensions:				 cl_khr_icd cl_amd_event_callback 
+
+
+  Platform Name:				 AMD Accelerated Parallel Processing
+Number of devices:				 1
+  Device Type:					 CL_DEVICE_TYPE_GPU
+  Vendor ID:					 1002h
+  Board name:					 AMD Radeon (TM) R9 390 Series
+  Device Topology:				 PCI[ B#3, D#0, F#0 ]
+  Max compute units:				 40
+  Max work items dimensions:			 3
+    Max work items[0]:				 1024
+    Max work items[1]:				 1024
+    Max work items[2]:				 1024
+  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:				 1005Mhz
+  Address bits:					 64
+  Max memory allocation:			 7301444400
+  Image support:				 Yes
+  Max number of images read arguments:		 128
+  Max number of images write arguments:		 8
+  Max image 2D width:				 16384
+  Max image 2D height:				 16384
+  Max image 3D width:				 16384
+  Max image 3D height:				 16384
+  Max image 3D depth:				 8192
+  Max samplers within kernel:			 26545
+  Max size of kernel argument:			 1024
+  Alignment (bits) of base address:		 1024
+  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:				 8589934592
+  Constant buffer size:				 7301444400
+  Max number of constant args:			 8
+  Local memory type:				 Scratchpad
+  Local memory size:				 65536
+  Max pipe arguments:				 16
+  Max pipe active reservations:			 16
+  Max pipe packet size:				 3006477104
+  Max global variable size:			 7301444400
+  Max global variable preferred total size:	 8589934592
+  Max read/write image args:			 64
+  Max on device events:				 1024
+  Queue on device max size:			 8388608
+  Max on device queues:				 1
+  Queue on device preferred size:		 262144
+  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
+```
+
+## Add User to Video Group
+
+Per this response
+
+https://github.com/RadeonOpenCompute/ROCm/issues/482#issuecomment-410551357 
+
+I add the current user to the `video` group. I forget where I first read that this was necessary, but next also
+is to try the `render` group.
+
+```
+sudo usermod -G video -a $USER
+
+```
+

debugging/002-Ubuntu-20_04/03-Video-Group.md

@@ -0,0 +1,19 @@
+## Logging Out and Back In
+
+The groupd `video` doesn't show up in the group list,
+
+```
+$ id
+uid=1000(arcologos) gid=1000(arcologos) groups=1000(arcologos),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),120(lpadmin),133(lxd),134(sambashare)
+```
+
+but now we get an additional line at the end of `clinfo` before it hangs.
+
+```
+ERROR: clCreateKernel(-6)
+```
+
+Next is to try adding to the `render` group, and then installing
+`libnuma-dev` as recommended in the above GitHub Issue thread comment.
+
+## Add User to Render Group