vulkan: automatically remove unsupported devices

[netrunnereve]

This basically gets rid of any unsupported devices early on to avoid a crash as my Intel integrated chip with no 16 bit storage got enabled by #15947.

Before:

RADV_PERFTEST=nogttspill ./bin/llama-bench -t 4 -ngl 100 -m llama-2-7b.Q4_0.gguf -r 2
MESA-INTEL: warning: Haswell Vulkan support is incomplete
ggml_vulkan: Found 2 Vulkan devices:
ggml_vulkan: 0 = Intel(R) HD Graphics 4600 (HSW GT2) (Intel open-source Mesa driver) | uma: 1 | fp16: 0 | bf16: 0 | warp size: 32 | shared memory: 65536 | int dot: 0 | matrix cores: none
ggml_vulkan: 1 = AMD Radeon RX 470 Graphics (RADV POLARIS10) (radv) | uma: 0 | fp16: 0 | bf16: 0 | warp size: 64 | shared memory: 65536 | int dot: 0 | matrix cores: none
| model                          |       size |     params | backend    | ngl |            test |                  t/s |
| ------------------------------ | ---------: | ---------: | ---------- | --: | --------------: | -------------------: |
ggml_vulkan: device Vulkan0 does not support 16-bit storage.
main: error: failed to load model 'llama-2-7b.Q4_0.gguf'
ERROR:             vkDestroyFence: Invalid device [VUID-vkDestroyFence-device-parameter]
Aborted (core dumped)

After:

RADV_PERFTEST=nogttspill ./bin/llama-bench -t 4 -ngl 100 -m llama-2-7b.Q4_0.gguf -r 2
MESA-INTEL: warning: Haswell Vulkan support is incomplete
ggml_vulkan: Removed 1 unsupported Vulkan devices.
ggml_vulkan: Found 1 Vulkan devices:
ggml_vulkan: 0 = AMD Radeon RX 470 Graphics (RADV POLARIS10) (radv) | uma: 0 | fp16: 0 | bf16: 0 | warp size: 64 | shared memory: 65536 | int dot: 0 | matrix cores: none
| model                          |       size |     params | backend    | ngl |            test |                  t/s |
| ------------------------------ | ---------: | ---------: | ---------- | --: | --------------: | -------------------: |
| llama 7B Q4_0                  |   3.56 GiB |     6.74 B | Vulkan     | 100 |           pp512 |        192.68 ± 0.51 |
| llama 7B Q4_0                  |   3.56 GiB |     6.74 B | Vulkan     | 100 |           tg128 |         38.23 ± 0.04 |

build: 8a7549fe (6465)

[0cc4m]

Thank you for the fix, but I would prefer it during the device selection, instead of removing devices afterwards. I can also do the implementation if you prefer that.

[netrunnereve]

Ok this should do it. I got rid of the warning message as well as I don't really see the point of that here.

[0cc4m]

Looks good otherwise. I don't have a device to test this.

[0cc4m]

Thank you!