Files
ollama37/discover/runner_test.go
Shang Chieh Tseng ef14fb5b26 Sync with upstream ollama/ollama and restore Tesla K80 (compute 3.7) support
This commit represents a complete rework after pulling the latest changes from
official ollama/ollama repository and re-applying Tesla K80 compatibility patches.

## Key Changes

### CUDA Compute Capability 3.7 Support (Tesla K80)
- Added sm_37 (compute 3.7) to CMAKE_CUDA_ARCHITECTURES in CMakeLists.txt
- Updated CMakePresets.json to include compute 3.7 in "CUDA 11" preset
- Using 37-virtual (PTX with JIT compilation) for maximum compatibility

### Legacy Toolchain Compatibility
- **NVIDIA Driver**: 470.256.02 (last version supporting Kepler/K80)
- **CUDA Version**: 11.4.4 (last CUDA 11.x supporting compute 3.7)
- **GCC Version**: 10.5.0 (required by CUDA 11.4 host_config.h)

### CPU Architecture Trade-offs
Due to GCC 10.5 limitation, sacrificed newer CPU optimizations:
- Alderlake CPU variant enabled WITHOUT AVX_VNNI (requires GCC 11+)
- Still supports: SSE4.2, AVX, F16C, AVX2, BMI2, FMA
- Performance impact: ~3-7% on newer CPUs (acceptable for K80 compatibility)

### Build System Updates
- Modified ml/backend/ggml/ggml/src/ggml-cuda/CMakeLists.txt for compute 3.7
- Added -Wno-deprecated-gpu-targets flag to suppress warnings
- Updated ml/backend/ggml/ggml/src/CMakeLists.txt for Alderlake without AVX_VNNI

### Upstream Sync
Merged latest llama.cpp changes including:
- Enhanced KV cache management with ISWA and hybrid memory support
- Improved multi-modal support (mtmd framework)
- New model architectures (Gemma3, Llama4, Qwen3, etc.)
- GPU backend improvements for CUDA, Metal, and ROCm
- Updated quantization support and GGUF format handling

### Documentation
- Updated CLAUDE.md with comprehensive build instructions
- Documented toolchain constraints and CPU architecture trade-offs
- Removed outdated CI/CD workflows (tesla-k80-*.yml)
- Cleaned up temporary development artifacts

## Rationale

This fork maintains Tesla K80 GPU support (compute 3.7) which was dropped in
official Ollama due to legacy driver/CUDA requirements. The toolchain constraint
creates a deadlock:
- K80 → Driver 470 → CUDA 11.4 → GCC 10 → No AVX_VNNI

We accept the loss of cutting-edge CPU optimizations to enable running modern
LLMs on legacy but still capable Tesla K80 hardware (12GB VRAM per GPU).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-05 14:03:05 +08:00

109 lines
2.4 KiB
Go

package discover
import (
"testing"
"github.com/ollama/ollama/app/lifecycle"
)
func init() {
lifecycle.InitLogging()
}
func TestFilterOverlapByLibrary(t *testing.T) {
type testcase struct {
name string
inp map[string]map[string]map[string]int
exp []bool
}
for _, tc := range []testcase{
{
name: "empty",
inp: map[string]map[string]map[string]int{},
exp: []bool{}, // needs deletion
},
{
name: "single no overlap",
inp: map[string]map[string]map[string]int{
"CUDA": {
"cuda_v12": {
"GPU-d7b00605-c0c8-152d-529d-e03726d5dc52": 0,
},
},
},
exp: []bool{false},
},
{
name: "100% overlap pick 2nd",
inp: map[string]map[string]map[string]int{
"CUDA": {
"cuda_v12": {
"GPU-d7b00605-c0c8-152d-529d-e03726d5dc52": 0,
"GPU-cd6c3216-03d2-a8eb-8235-2ffbf571712e": 1,
},
"cuda_v13": {
"GPU-d7b00605-c0c8-152d-529d-e03726d5dc52": 2,
"GPU-cd6c3216-03d2-a8eb-8235-2ffbf571712e": 3,
},
},
},
exp: []bool{true, true, false, false},
},
{
name: "100% overlap pick 1st",
inp: map[string]map[string]map[string]int{
"CUDA": {
"cuda_v13": {
"GPU-d7b00605-c0c8-152d-529d-e03726d5dc52": 0,
"GPU-cd6c3216-03d2-a8eb-8235-2ffbf571712e": 1,
},
"cuda_v12": {
"GPU-d7b00605-c0c8-152d-529d-e03726d5dc52": 2,
"GPU-cd6c3216-03d2-a8eb-8235-2ffbf571712e": 3,
},
},
},
exp: []bool{false, false, true, true},
},
{
name: "partial overlap pick older",
inp: map[string]map[string]map[string]int{
"CUDA": {
"cuda_v13": {
"GPU-d7b00605-c0c8-152d-529d-e03726d5dc52": 0,
},
"cuda_v12": {
"GPU-d7b00605-c0c8-152d-529d-e03726d5dc52": 1,
"GPU-cd6c3216-03d2-a8eb-8235-2ffbf571712e": 2,
},
},
},
exp: []bool{true, false, false},
},
{
name: "no overlap",
inp: map[string]map[string]map[string]int{
"CUDA": {
"cuda_v13": {
"GPU-d7b00605-c0c8-152d-529d-e03726d5dc52": 0,
},
"cuda_v12": {
"GPU-cd6c3216-03d2-a8eb-8235-2ffbf571712e": 1,
},
},
},
exp: []bool{false, false},
},
} {
t.Run(tc.name, func(t *testing.T) {
needsDelete := make([]bool, len(tc.exp))
filterOverlapByLibrary(tc.inp, needsDelete)
for i, exp := range tc.exp {
if needsDelete[i] != exp {
t.Fatalf("expected: %v\ngot: %v", tc.exp, needsDelete)
}
}
})
}
}