matt/ollama37
1
0
Fork 0
mirror of https://github.com/dogkeeper886/ollama37.git synced 2025-12-10 15:57:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

Refine build to support CPU only

Browse Source 
If someone checks out the ollama repo and doesn't install the CUDA
library, this will ensure they can build a CPU only version
This commit is contained in:
Daniel Hiltgen
2023-12-13 17:26:47 -08:00
parent 51082535e1
commit 1b991d0ba9
9 changed files with 152 additions and 98 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
gpu/gpu.go
View File

@@ -3,6 +3,9 @@
package gpu
/*
#cgo linux LDFLAGS: -lrt -lpthread -ldl -lstdc++ -lm
#cgo windows LDFLAGS: -lpthread
#include "gpu_info.h"
*/
@@ -26,6 +29,7 @@ var gpuHandles *handles = nil
// Note: gpuMutex must already be held
func initGPUHandles() {
// TODO - if the ollama build is CPU only, don't do these checks as they're irrelevant and confusing
log.Printf("Detecting GPU type")
gpuHandles = &handles{nil, nil}
var resp C.cuda_init_resp_t
@@ -61,20 +65,32 @@ func GetGPUInfo() GpuInfo {
}
var memInfo C.mem_info_t
var resp GpuInfo
resp := GpuInfo{"", 0, 0}
if gpuHandles.cuda != nil {
C.cuda_check_vram(*gpuHandles.cuda, &memInfo)
resp.Driver = "CUDA"
if memInfo.err != nil {
log.Printf("error looking up CUDA GPU memory: %s", C.GoString(memInfo.err))
C.free(unsafe.Pointer(memInfo.err))
} else {
resp.Driver = "CUDA"
}
} else if gpuHandles.rocm != nil {
C.rocm_check_vram(*gpuHandles.rocm, &memInfo)
resp.Driver = "ROCM"
} else {
if memInfo.err != nil {
log.Printf("error looking up ROCm GPU memory: %s", C.GoString(memInfo.err))
C.free(unsafe.Pointer(memInfo.err))
} else {
resp.Driver = "ROCM"
}
}
if resp.Driver == "" {
C.cpu_check_ram(&memInfo)
resp.Driver = "CPU"
}
if memInfo.err != nil {
log.Printf("error looking up GPU memory: %s", C.GoString(memInfo.err))
log.Printf("error looking up CPU memory: %s", C.GoString(memInfo.err))
C.free(unsafe.Pointer(memInfo.err))
return resp
}
resp.FreeMemory = uint64(memInfo.free)
resp.TotalMemory = uint64(memInfo.total)
@@ -108,12 +124,7 @@ func NumGPU(numLayer, fileSizeBytes int64, opts api.Options) int {
// 75% of the absolute max number of layers we can fit in available VRAM, off-loading too many layers to the GPU can cause OOM errors
layers := int(info.FreeMemory/bytesPerLayer) * 3 / 4
// TODO - not sure on this part... if we can't fit all the layers, just fallback to CPU
// if int64(layers) < numLayer {
// log.Printf("%d MB VRAM available, insufficient to load current model (reuires %d MB) - falling back to CPU %d", freeBytes/(1024*1024), fileSizeBytes/(1024*1024))
// return 0
// }
log.Printf("%d MB VRAM available, loading up to %d GPU layers out of %d", info.FreeMemory/(1024*1024), layers, numLayer)
log.Printf("%d MB VRAM available, loading up to %d %s GPU layers out of %d", info.FreeMemory/(1024*1024), layers, info.Driver, numLayer)
return layers
}