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2 Commits

Author SHA1 Message Date
Bruce MacDonald
c259747acb ctxLen -> origCtxLen 2025-02-20 11:16:53 -08:00
Bruce MacDonald
eb086514da ml: let model specify rope configuration
Add support for model-specific RoPE configuration parameters by:

1. Creating a new `RopeConfig` struct to encapsulate all RoPE parameters
2. Adding `RopeType` enum to specify different RoPE variants (Standard/NeoX)
3. Extracting original context length from model config
4. Refactoring `RoPE()` interface to use the new config struct
5. Updating llama and mllama models to use new RoPE configuration

This change allows models to specify their RoPE implementation type and
original context length, which is important for proper position embedding
calculation and model compatibility.
2025-02-14 14:18:51 -08:00
18 changed files with 117 additions and 548 deletions

View File

@@ -329,9 +329,7 @@ jobs:
done
working-directory: dist/${{ matrix.os }}-${{ matrix.arch }}
- run: |
for ARCHIVE in dist/${{ matrix.os }}-${{ matrix.arch }}/*.tar.in; do
tar c -C dist/${{ matrix.os }}-${{ matrix.arch }} -T $ARCHIVE --owner 0 --group 0 | pigz -9vc >$(basename ${ARCHIVE//.*/}.tgz);
done
for ARCHIVE in dist/${{ matrix.os }}-${{ matrix.arch }}/*.tar.in; do tar c -C dist/${{ matrix.os }}-${{ matrix.arch }} -T $ARCHIVE | pigz -9vc >$(basename ${ARCHIVE//.*/}.tgz); done
- uses: actions/upload-artifact@v4
with:
name: dist-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.target }}

View File

@@ -381,7 +381,6 @@ See the [API documentation](./docs/api.md) for all endpoints.
- [ChibiChat](https://github.com/CosmicEventHorizon/ChibiChat) (Kotlin-based Android app to chat with Ollama and Koboldcpp API endpoints)
- [LocalLLM](https://github.com/qusaismael/localllm) (Minimal Web-App to run ollama models on it with a GUI)
- [Ollamazing](https://github.com/buiducnhat/ollamazing) (Web extension to run Ollama models)
- [OpenDeepResearcher-via-searxng](https://github.com/benhaotang/OpenDeepResearcher-via-searxng) (A Deep Research equivent endpoint with Ollama support for running locally)
### Cloud
@@ -549,7 +548,6 @@ See the [API documentation](./docs/api.md) for all endpoints.
- [Alfred Ollama](https://github.com/zeitlings/alfred-ollama) (Alfred Workflow)
- [TextLLaMA](https://github.com/adarshM84/TextLLaMA) A Chrome Extension that helps you write emails, correct grammar, and translate into any language
- [Simple-Discord-AI](https://github.com/zyphixor/simple-discord-ai)
- [LLM Telegram Bot](https://github.com/innightwolfsleep/llm_telegram_bot) (telegram bot, primary for RP. Oobabooga-like buttons, [A1111](https://github.com/AUTOMATIC1111/stable-diffusion-webui) API integration e.t.c)
### Supported backends

View File

@@ -55,7 +55,7 @@ Here's a quick example showing API access from `powershell`
## Troubleshooting
Ollama on Windows stores files in a few different locations. You can view them in
the explorer window by hitting `<Ctrl>+R` and type in:
the explorer window by hitting `<cmd>+R` and type in:
- `explorer %LOCALAPPDATA%\Ollama` contains logs, and downloaded updates
- *app.log* contains most resent logs from the GUI application
- *server.log* contains the most recent server logs

View File

@@ -12,9 +12,6 @@ func TestHumanNumber(t *testing.T) {
testCases := []testCase{
{0, "0"},
{999, "999"},
{1000, "1K"},
{1001, "1K"},
{1000000, "1M"},
{125000000, "125M"},
{500500000, "500.50M"},

View File

@@ -120,15 +120,6 @@ func (kv KV) Uints(key string, defaultValue ...[]uint32) []uint32 {
return s
}
func (kv KV) Floats(key string, defaultValue ...[]float32) []float32 {
r := keyValue(kv, key, &array{})
s := make([]float32, r.size)
for i := range r.size {
s[i] = float32(r.values[i].(float32))
}
return s
}
func keyValue[T string | uint32 | uint64 | float32 | *array](kv KV, key string, defaultValue ...T) T {
if !strings.HasPrefix(key, "tokenizer.") && !strings.HasPrefix(key, "general.") {
key = kv.Architecture() + "." + key

1
go.mod
View File

@@ -18,7 +18,6 @@ require (
github.com/agnivade/levenshtein v1.1.1
github.com/d4l3k/go-bfloat16 v0.0.0-20211005043715-690c3bdd05f1
github.com/dlclark/regexp2 v1.11.4
github.com/emirpasic/gods v1.18.1
github.com/emirpasic/gods/v2 v2.0.0-alpha
github.com/google/go-cmp v0.6.0
github.com/mattn/go-runewidth v0.0.14

2
go.sum
View File

@@ -44,8 +44,6 @@ github.com/dgryski/trifles v0.0.0-20200323201526-dd97f9abfb48 h1:fRzb/w+pyskVMQ+
github.com/dgryski/trifles v0.0.0-20200323201526-dd97f9abfb48/go.mod h1:if7Fbed8SFyPtHLHbg49SI7NAdJiC5WIA09pe59rfAA=
github.com/dlclark/regexp2 v1.11.4 h1:rPYF9/LECdNymJufQKmri9gV604RvvABwgOA8un7yAo=
github.com/dlclark/regexp2 v1.11.4/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc=
github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ=
github.com/emirpasic/gods/v2 v2.0.0-alpha h1:dwFlh8pBg1VMOXWGipNMRt8v96dKAIvBehtCt6OtunU=
github.com/emirpasic/gods/v2 v2.0.0-alpha/go.mod h1:W0y4M2dtBB9U5z3YlghmpuUhiaZT2h6yoeE+C1sCp6A=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=

View File

@@ -305,10 +305,6 @@ func (b *testBackend) NewContext() ml.Context {
return &testContext{}
}
func (b *testBackend) SystemInfo() string {
return "not implemented"
}
type testContext struct{}
func (c *testContext) Zeros(dtype ml.DType, shape ...int) ml.Tensor {
@@ -434,7 +430,7 @@ func (t *testTensor) Conv2D(ctx ml.Context, weight ml.Tensor, s0, s1, p0, p1, d0
panic("not implemented")
}
func (t *testTensor) RoPE(ctx ml.Context, positionIDs, ropeFactors ml.Tensor, dim, ropeType uint32, base, scale float32) ml.Tensor {
func (t *testTensor) RoPE(ctx ml.Context, rc ml.RopeConfig) ml.Tensor {
panic("not implemented")
}

View File

@@ -17,14 +17,12 @@ type Config interface {
Strings(string, ...[]string) []string
Uints(string, ...[]uint32) []uint32
Floats(string, ...[]float32) []float32
}
type Backend interface {
Config() Config
Get(name string) Tensor
NewContext() Context
SystemInfo() string
}
var backends = make(map[string]func(*os.File) (Backend, error))
@@ -45,6 +43,42 @@ func NewBackend(f *os.File) (Backend, error) {
return nil, fmt.Errorf("unsupported backend")
}
// RopeType specifies the type of RoPE (Rotary Position Embedding) to use, these types are implemented in the backend
type RopeType int
const (
RopeTypeStandard RopeType = iota
_ // not yet used
RopeTypeNeoX
)
// RopeConfig contains all configuration for the RoPE (Rotary Position Embedding) operation
type RopeConfig struct {
// PositionIDs contains the position indices for each token in the sequence
// These indices are used to calculate the rotary embeddings
PositionIDs Tensor
// RopeFactors is an optional tensor containing pre-computed rotation factors
RopeFactors Tensor
// RopeDim specifies the dimension size for the rotary embeddings
RopeDim uint32
// RopeType indicates which RoPE variant to use (e.g. normal or neox)
RopeType RopeType
// OrigCtxLen stores the original context length the model was trained with
OrigCtxLen int
// RopeBase is the base value used in the frequency calculation
RopeBase float32
// RopeScale is a scaling factor applied to position indices
RopeScale float32
// YaRN parameters can be added here if they need to be configurable
}
type Context interface {
Zeros(dtype DType, shape ...int) Tensor
FromFloatSlice(s []float32, shape ...int) (Tensor, error)
@@ -77,7 +111,7 @@ type Tensor interface {
Scale(ctx Context, s float64) Tensor
Conv2D(ctx Context, weight Tensor, s0, s1, p0, p1, d0, d1 int) Tensor
RoPE(ctx Context, positionIDs, ropeFactors Tensor, dim, ropeType uint32, base, scale float32) Tensor
RoPE(ctx Context, rc RopeConfig) Tensor
Tanh(ctx Context) Tensor
GELU(ctx Context) Tensor

View File

@@ -1,27 +1,11 @@
package ggml
/*
#cgo CPPFLAGS: -I${SRCDIR}/ggml/include
#include <stdlib.h>
#include <stdint.h>
#include "ggml.h"
#include "ggml-cpu.h"
#include "ggml-backend.h"
static struct ggml_backend_feature * getBackendFeatures(void *fp, ggml_backend_reg_t reg) {return ((ggml_backend_get_features_t)(fp))(reg);}
static struct ggml_backend_feature * getNextBackendFeatures(struct ggml_backend_feature * feature) { return &feature[1];}
typedef enum {COMP_UNKNOWN,COMP_GCC,COMP_CLANG} COMPILER;
COMPILER inline get_compiler() {
#if defined(__clang__)
return COMP_CLANG;
#elif defined(__GNUC__)
return COMP_GCC;
#else
return UNKNOWN_COMPILER;
#endif
}
*/
// #cgo CPPFLAGS: -I${SRCDIR}/ggml/include
// #include <stdlib.h>
// #include <stdint.h>
// #include "ggml.h"
// #include "ggml-cpu.h"
// #include "ggml-backend.h"
import "C"
import (
@@ -595,16 +579,9 @@ func (t *Tensor) View(ctx ml.Context, offset int, shape ...int) ml.Tensor {
}
}
const (
ropeTypeNorm C.int = 0
ropeTypeNeox C.int = 2
ropeTypeMrope C.int = 8
ropeTypeVision C.int = 24
)
func (t *Tensor) RoPE(ctx ml.Context, positionIDs, ropeFactors ml.Tensor, ropeDim, ropeType uint32, ropeBase, ropeScale float32) ml.Tensor {
if ropeFactors == nil {
ropeFactors = &Tensor{}
func (t *Tensor) RoPE(ctx ml.Context, rc ml.RopeConfig) ml.Tensor {
if rc.RopeFactors == nil {
rc.RopeFactors = &Tensor{}
}
dequant := t.t
@@ -614,12 +591,15 @@ func (t *Tensor) RoPE(ctx ml.Context, positionIDs, ropeFactors ml.Tensor, ropeDi
return &Tensor{
t: C.ggml_rope_ext(
ctx.(*Context).ctx, dequant, positionIDs.(*Tensor).t, ropeFactors.(*Tensor).t,
C.int(ropeDim),
C.int(ropeType),
131072, // YaRN n_ctx_train
C.float(ropeBase),
C.float(ropeScale),
ctx.(*Context).ctx,
dequant,
rc.PositionIDs.(*Tensor).t,
rc.RopeFactors.(*Tensor).t,
C.int(rc.RopeDim),
C.int(rc.RopeType),
C.int(rc.OrigCtxLen),
C.float(rc.RopeBase),
C.float(rc.RopeScale),
0., // YaRN ext_factor
1., // YaRN attn_factor
32., // YaRN beta_fast
@@ -645,34 +625,3 @@ func (t *Tensor) Conv2D(ctx ml.Context, t2 ml.Tensor, s0, s1, p0, p1, d0, d1 int
t: C.ggml_conv_2d(ctx.(*Context).ctx, t.t, t2.(*Tensor).t, C.int(s0), C.int(s1), C.int(p0), C.int(p1), C.int(d0), C.int(d1)),
}
}
func (b *Backend) SystemInfo() string {
var compiler string
switch C.get_compiler() {
case C.COMP_UNKNOWN:
compiler = "cgo(unknown_compiler)"
case C.COMP_GCC:
compiler = "cgo(gcc)"
case C.COMP_CLANG:
compiler = "cgo(clang)"
}
var s string
for i := range C.ggml_backend_reg_count() {
reg := C.ggml_backend_reg_get(i)
fName := C.CString("ggml_backend_get_features")
defer C.free(unsafe.Pointer(fName))
get_features_fn := C.ggml_backend_reg_get_proc_address(reg, fName)
if get_features_fn != nil {
s += C.GoString(C.ggml_backend_reg_name(reg))
s += " : "
for features := C.getBackendFeatures(get_features_fn, reg); features.name != nil; features = C.getNextBackendFeatures(features) {
s += C.GoString(features.name)
s += " = "
s += C.GoString(features.value)
s += " | "
}
}
}
return s + compiler
}

View File

@@ -21,7 +21,6 @@ import (
_ "github.com/ollama/ollama/ml/backend"
)
// Options contains the inputs for a model forward pass
type Options struct {
Inputs []int32
Positions []int32
@@ -35,13 +34,11 @@ type config struct {
Cache kvcache.Cache
}
// Base implements the common fields and methods for all models
type Base struct {
b ml.Backend
config
}
// Backend returns the underlying backend that will run the model
func (m *Base) Backend() ml.Backend {
return m.b
}
@@ -50,7 +47,6 @@ func (m *Base) Config() config {
return m.config
}
// Model implements a specific model architecture, defining the forward pass and any model-specific configuration
type Model interface {
Forward(ml.Context, Options) (ml.Tensor, error)
@@ -60,7 +56,6 @@ type Model interface {
var models = make(map[string]func(ml.Config) (Model, error))
// Register registers a model constructor for the given architecture
func Register(name string, f func(ml.Config) (Model, error)) {
if _, ok := models[name]; ok {
panic("model: model already registered")
@@ -69,9 +64,8 @@ func Register(name string, f func(ml.Config) (Model, error)) {
models[name] = f
}
// New initializes a new model instance with the provided configuration based on the metadata in the model file
func New(modelPath string) (Model, error) {
r, err := os.Open(modelPath)
func New(s string) (Model, error) {
r, err := os.Open(s)
if err != nil {
return nil, err
}

View File

@@ -1,193 +0,0 @@
package gemma2
import (
"math"
"github.com/ollama/ollama/kvcache"
"github.com/ollama/ollama/ml"
"github.com/ollama/ollama/ml/nn"
"github.com/ollama/ollama/model"
)
type Options struct {
hiddenSize, numHeads, numKVHeads int
attnKeyLen, attnValLen int
eps, ropeBase, ropeScale float32
attnLogitSoftcap float32
finalLogitSoftcap float32
}
type Model struct {
model.Base
model.SentencePieceModel
TokenEmbedding *nn.Embedding `gguf:"token_embd"`
Layers []Layer `gguf:"blk"`
OutputNorm *nn.RMSNorm `gguf:"output_norm"` // is this supposed to be root means square?
Output *nn.Linear `gguf:"output,alt:token_embd"` // just set to token_embd?
*Options
}
func New(c ml.Config) (model.Model, error) {
m := Model{
SentencePieceModel: model.NewSentencePieceModel(
c.String("tokenizer.ggml.pretokenizer", `(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\p{L}\p{N}]?\p{L}+|\p{N}{1,3}| ?[^\s\p{L}\p{N}]+[\r\n]*|\s*[\r\n]+|\s+(?!\S)|\s+`),
&model.Vocabulary{
Values: c.Strings("tokenizer.ggml.tokens"),
Scores: c.Floats("tokenizer.ggml.scores"),
Types: c.Uints("tokenizer.ggml.token_type"),
BOS: int32(c.Uint("tokenizer.ggml.bos_token_id")),
EOS: int32(c.Uint("tokenizer.ggml.eos_token_id")),
},
),
Layers: make([]Layer, c.Uint("block_count")),
Options: &Options{
hiddenSize: int(c.Uint("embedding_length")),
numHeads: int(c.Uint("attention.head_count")),
numKVHeads: int(c.Uint("attention.head_count_kv")),
attnKeyLen: int(c.Uint("attention.key_length")),
attnValLen: int(c.Uint("attention.value_length")),
eps: c.Float("attention.layer_norm_rms_epsilon"),
ropeBase: c.Float("rope.freq_base", 10000.0),
ropeScale: c.Float("rope.freq_scale", 1.0),
attnLogitSoftcap: c.Float("attn_logit_softcapping"),
finalLogitSoftcap: c.Float("final_logit_softcapping"),
},
}
slidingWindowLen := int32(c.Uint("attention.sliding_window"))
m.Cache = kvcache.NewWrapperCache(kvcache.NewSWACache(slidingWindowLen, m.Shift), kvcache.NewCausalCache(m.Shift))
return &m, nil
}
type SelfAttention struct {
Query *nn.Linear `gguf:"attn_q"`
Key *nn.Linear `gguf:"attn_k"`
Value *nn.Linear `gguf:"attn_v"`
Output *nn.Linear `gguf:"attn_output"`
}
func (sa *SelfAttention) Forward(ctx ml.Context, hiddenState, positionIDs ml.Tensor, cache kvcache.Cache, opts *Options) ml.Tensor {
batchSize := hiddenState.Dim(1)
ropeType := uint32(2)
q := sa.Query.Forward(ctx, hiddenState)
q = q.Reshape(ctx, opts.attnKeyLen, opts.numHeads, batchSize)
q = q.RoPE(ctx, positionIDs, nil, uint32(opts.attnKeyLen), ropeType, opts.ropeBase, opts.ropeScale)
// todo: this should be 1.0/math.Sqrt(float64(headDim)) for 27B models
q = q.Scale(ctx, 1.0/math.Sqrt(float64(opts.attnKeyLen)))
k := sa.Key.Forward(ctx, hiddenState)
k = k.Reshape(ctx, opts.attnKeyLen, opts.numKVHeads, batchSize)
k = k.RoPE(ctx, positionIDs, nil, uint32(opts.attnKeyLen), ropeType, opts.ropeBase, opts.ropeScale)
v := sa.Value.Forward(ctx, hiddenState)
v = v.Reshape(ctx, opts.attnValLen, opts.numKVHeads, batchSize)
cache.Put(ctx, k, v)
k, v, mask := cache.Get(ctx)
q = q.Permute(ctx, 0, 2, 1, 3).Contiguous(ctx)
k = k.Permute(ctx, 0, 2, 1, 3).Contiguous(ctx)
v = v.Permute(ctx, 1, 2, 0, 3).Contiguous(ctx)
kq := k.Mulmat(ctx, q)
// logit softcap
kq = kq.Scale(ctx, 1.0/float64(opts.attnLogitSoftcap))
kq = kq.Tanh(ctx)
kq = kq.Scale(ctx, float64(opts.attnLogitSoftcap))
kq = kq.Add(ctx, mask)
kq = kq.Softmax(ctx)
kqv := v.Mulmat(ctx, kq)
kqv = kqv.Permute(ctx, 0, 2, 1, 3).Contiguous(ctx)
kqv = kqv.Reshape(ctx, opts.attnValLen*opts.numHeads, batchSize)
return sa.Output.Forward(ctx, kqv)
}
func (m *Model) Shift(ctx ml.Context, layer int, key, shift ml.Tensor) (ml.Tensor, error) {
return key.RoPE(ctx, shift, nil, uint32(m.Options.attnKeyLen), uint32(2), m.Options.ropeBase, m.Options.ropeScale), nil
}
type MLP struct {
Up *nn.Linear `gguf:"ffn_up"`
Down *nn.Linear `gguf:"ffn_down"`
Gate *nn.Linear `gguf:"ffn_gate"`
}
func (mlp *MLP) Forward(ctx ml.Context, hiddenState ml.Tensor, opts *Options) ml.Tensor {
hiddenState = mlp.Gate.Forward(ctx, hiddenState).GELU(ctx).Mul(ctx, mlp.Up.Forward(ctx, hiddenState))
return mlp.Down.Forward(ctx, hiddenState)
}
type Layer struct {
AttentionNorm *nn.RMSNorm `gguf:"attn_norm"`
SelfAttention *SelfAttention
PostAttentionNorm *nn.RMSNorm `gguf:"post_attention_norm"`
MLPNorm *nn.RMSNorm `gguf:"ffn_norm"`
MLP *MLP
PostMLPNorm *nn.RMSNorm `gguf:"post_ffw_norm"`
}
func (l *Layer) Forward(ctx ml.Context, hiddenState, positionIDs ml.Tensor, cache kvcache.Cache, opts *Options) ml.Tensor {
residual := hiddenState
hiddenState = l.AttentionNorm.Forward(ctx, hiddenState, opts.eps)
hiddenState = l.SelfAttention.Forward(ctx, hiddenState, positionIDs, cache, opts)
hiddenState = l.PostAttentionNorm.Forward(ctx, hiddenState, opts.eps)
hiddenState = hiddenState.Add(ctx, residual)
residual = hiddenState
hiddenState = l.MLPNorm.Forward(ctx, hiddenState, opts.eps)
hiddenState = l.MLP.Forward(ctx, hiddenState, opts)
hiddenState = l.PostMLPNorm.Forward(ctx, hiddenState, opts.eps)
return hiddenState.Add(ctx, residual)
}
func (m *Model) Forward(ctx ml.Context, opts model.Options) (ml.Tensor, error) {
inputs, err := ctx.FromIntSlice(opts.Inputs, len(opts.Inputs))
if err != nil {
return nil, err
}
positions, err := ctx.FromIntSlice(opts.Positions, len(opts.Positions))
if err != nil {
return nil, err
}
hiddenState := m.TokenEmbedding.Forward(ctx, inputs)
hiddenState = hiddenState.Scale(ctx, math.Sqrt(float64(m.Options.hiddenSize)))
for i, layer := range m.Layers {
cacheType := i % 2
m.Cache.SetLayer(i)
wc := m.Cache.(*kvcache.WrapperCache)
wc.SetLayerType(cacheType)
hiddenState = layer.Forward(ctx, hiddenState, positions, m.Cache, m.Options)
}
hiddenState = m.OutputNorm.Forward(ctx, hiddenState, m.eps)
hiddenState = m.Output.Forward(ctx, hiddenState)
// final logit softcap
hiddenState = hiddenState.Scale(ctx, 1.0/float64(m.Options.finalLogitSoftcap))
hiddenState = hiddenState.Tanh(ctx)
hiddenState = hiddenState.Scale(ctx, float64(m.Options.finalLogitSoftcap))
outputs, err := ctx.FromIntSlice(opts.Outputs, len(opts.Outputs))
if err != nil {
return nil, err
}
return hiddenState.Rows(ctx, outputs), nil
}
func init() {
model.Register("gemma2", New)
}

View File

@@ -10,10 +10,10 @@ import (
)
type Options struct {
RopeFactors ml.Tensor `gguf:"rope_freqs.weight"`
hiddenSize, numHeads, numKVHeads int
eps, ropeBase, ropeScale float32
ropeDim uint32
RopeFactors ml.Tensor `gguf:"rope_freqs.weight"`
origCtxLen, hiddenSize, numHeads, numKVHeads int
eps, ropeBase, ropeScale float32
ropeDim uint32
}
type Model struct {
@@ -46,6 +46,7 @@ func New(c ml.Config) (model.Model, error) {
numHeads: int(c.Uint("attention.head_count")),
numKVHeads: int(c.Uint("attention.head_count_kv")),
eps: c.Float("attention.layer_norm_rms_epsilon"),
origCtxLen: int(c.Uint("context_length")),
ropeBase: c.Float("rope.freq_base"),
ropeScale: c.Float("rope.freq_scale", 1),
ropeDim: c.Uint("rope.dimension_count"),
@@ -67,15 +68,23 @@ type SelfAttention struct {
func (sa *SelfAttention) Forward(ctx ml.Context, hiddenState, positionIDs ml.Tensor, cache kvcache.Cache, opts *Options) ml.Tensor {
batchSize := hiddenState.Dim(1)
headDim := opts.hiddenSize / opts.numHeads
ropeType := uint32(0)
rc := ml.RopeConfig{
PositionIDs: positionIDs,
RopeFactors: opts.RopeFactors,
RopeDim: opts.ropeDim,
RopeType: ml.RopeTypeStandard,
OrigCtxLen: opts.origCtxLen,
RopeBase: opts.ropeBase,
RopeScale: opts.ropeScale,
}
q := sa.Query.Forward(ctx, hiddenState)
q = q.Reshape(ctx, headDim, opts.numHeads, batchSize)
q = q.RoPE(ctx, positionIDs, opts.RopeFactors, opts.ropeDim, ropeType, opts.ropeBase, opts.ropeScale)
q = q.RoPE(ctx, rc)
k := sa.Key.Forward(ctx, hiddenState)
k = k.Reshape(ctx, headDim, opts.numKVHeads, batchSize)
k = k.RoPE(ctx, positionIDs, opts.RopeFactors, opts.ropeDim, ropeType, opts.ropeBase, opts.ropeScale)
k = k.RoPE(ctx, rc)
v := sa.Value.Forward(ctx, hiddenState)
v = v.Reshape(ctx, headDim, opts.numKVHeads, batchSize)
@@ -100,7 +109,18 @@ func (sa *SelfAttention) Forward(ctx ml.Context, hiddenState, positionIDs ml.Ten
}
func (m *Model) Shift(ctx ml.Context, layer int, key, shift ml.Tensor) (ml.Tensor, error) {
return key.RoPE(ctx, shift, m.Options.RopeFactors, m.Options.ropeDim, uint32(0), m.Options.ropeBase, m.Options.ropeScale), nil
return key.RoPE(
ctx,
ml.RopeConfig{
PositionIDs: shift,
RopeFactors: m.Options.RopeFactors,
RopeDim: m.Options.ropeDim,
RopeType: ml.RopeTypeStandard,
OrigCtxLen: m.Options.origCtxLen,
RopeBase: m.Options.ropeBase,
RopeScale: m.Options.ropeScale,
},
), nil
}
type MLP struct {

View File

@@ -19,15 +19,23 @@ type TextSelfAttention struct {
func (sa *TextSelfAttention) Forward(ctx ml.Context, hiddenState, positions, _ ml.Tensor, cache *kvcache.WrapperCache, opts *TextModelOptions) ml.Tensor {
batchSize := hiddenState.Dim(1)
headDim := opts.hiddenSize / opts.numHeads
ropeType := uint32(0)
rc := ml.RopeConfig{
PositionIDs: positions,
RopeFactors: opts.RopeFactors,
RopeDim: opts.ropeDim,
RopeType: ml.RopeTypeStandard,
OrigCtxLen: opts.ctxLen,
RopeBase: opts.ropeBase,
RopeScale: opts.ropeScale,
}
query := sa.Query.Forward(ctx, hiddenState)
query = query.Reshape(ctx, headDim, opts.numHeads, batchSize)
query = query.RoPE(ctx, positions, opts.RopeFactors, opts.ropeDim, ropeType, opts.ropeBase, opts.ropeScale)
query = query.RoPE(ctx, rc)
key := sa.Key.Forward(ctx, hiddenState)
key = key.Reshape(ctx, headDim, opts.numKVHeads, batchSize)
key = key.RoPE(ctx, positions, opts.RopeFactors, opts.ropeDim, ropeType, opts.ropeBase, opts.ropeScale)
key = key.RoPE(ctx, rc)
value := sa.Value.Forward(ctx, hiddenState)
value = value.Reshape(ctx, headDim, opts.numKVHeads, batchSize)
@@ -53,7 +61,18 @@ func (sa *TextSelfAttention) Forward(ctx ml.Context, hiddenState, positions, _ m
func (m *TextModel) Shift(ctx ml.Context, layer int, key, shift ml.Tensor) (ml.Tensor, error) {
// This will only get called for layers in the cache, which are just the self attention layers
return key.RoPE(ctx, shift, m.RopeFactors, m.ropeDim, uint32(0), m.ropeBase, m.ropeScale), nil
return key.RoPE(
ctx,
ml.RopeConfig{
PositionIDs: shift,
RopeFactors: m.RopeFactors,
RopeDim: m.ropeDim,
RopeType: ml.RopeTypeStandard,
OrigCtxLen: m.ctxLen,
RopeBase: m.ropeBase,
RopeScale: m.ropeScale,
},
), nil
}
type TextMLP struct {
@@ -190,9 +209,9 @@ func (d *TextDecoder) Forward(ctx ml.Context, hiddenState, positionIDs, mask, cr
type TextModelOptions struct {
RopeFactors ml.Tensor `gguf:"rope_freqs.weight"`
hiddenSize, numHeads, numKVHeads int
eps, ropeBase, ropeScale float32
ropeDim uint32
ctxLen, hiddenSize, numHeads, numKVHeads int
eps, ropeBase, ropeScale float32
ropeDim uint32
crossAttentionLayers []uint32
}

View File

@@ -1,7 +1,6 @@
package models
import (
_ "github.com/ollama/ollama/model/models/gemma2"
_ "github.com/ollama/ollama/model/models/llama"
_ "github.com/ollama/ollama/model/models/mllama"
)

View File

@@ -18,15 +18,6 @@ const (
SpecialEOS
)
const (
TOKEN_TYPE_NORMAL = iota + 1
TOKEN_TYPE_UNKNOWN
TOKEN_TYPE_CONTROL
TOKEN_TYPE_USER_DEFINED
TOKEN_TYPE_UNUSED
TOKEN_TYPE_BYTE
)
type TextProcessor interface {
Encode(string) ([]int32, error)
Decode([]int32) (string, error)
@@ -36,7 +27,7 @@ type TextProcessor interface {
type Vocabulary struct {
Values []string
Types []uint32
Scores []float32
Scores []uint32
Merges []string
BOS, EOS int32
@@ -84,7 +75,7 @@ func (v *Vocabulary) Decode(id int32) string {
func (v *Vocabulary) SpecialVocabulary() []string {
v.specialOnce.Do(func() {
for i := range v.Values {
if v.Types[i] == TOKEN_TYPE_CONTROL {
if v.Types[i] == 3 {
v.special = append(v.special, v.Values[i])
}
}

View File

@@ -1,220 +0,0 @@
package model
import (
"iter"
"log/slog"
"strings"
"github.com/dlclark/regexp2"
queue "github.com/emirpasic/gods/queues/priorityqueue"
)
const spmWhitespaceSep = "▁"
func replaceWhitespaceBySeperator(s string) string {
return strings.ReplaceAll(s, " ", spmWhitespaceSep)
}
type SentencePieceModel struct {
maxTokenLen int
pre *regexp2.Regexp
vocab *Vocabulary
}
func NewSentencePieceModel(pre string, vocab *Vocabulary) SentencePieceModel {
slog.Debug("Tokens", "num tokens", len(vocab.Values), "vals", vocab.Values[:3], "scores", vocab.Scores[:3], "types", vocab.Types[:3])
counter := map[int]int{}
var maxTokenLen int
for cnt := range vocab.Types {
switch vocab.Types[cnt] {
case TOKEN_TYPE_NORMAL, TOKEN_TYPE_USER_DEFINED, TOKEN_TYPE_UNUSED:
maxTokenLen = max(maxTokenLen, len(vocab.Values[cnt]))
fallthrough
default:
counter[int(vocab.Types[cnt])] += 1
}
}
slog.Debug("Token counts", "normal", counter[TOKEN_TYPE_NORMAL], "unknown", counter[TOKEN_TYPE_UNKNOWN], "control", counter[TOKEN_TYPE_CONTROL],
"user defined", counter[TOKEN_TYPE_USER_DEFINED], "unused", counter[TOKEN_TYPE_UNUSED], "byte", counter[TOKEN_TYPE_BYTE],
"max token len", maxTokenLen)
return SentencePieceModel{
maxTokenLen: maxTokenLen,
pre: regexp2.MustCompile(pre, regexp2.Unicode|regexp2.RE2),
vocab: vocab,
}
}
func (spm SentencePieceModel) Is(id int32, special Special) bool {
return spm.vocab.Is(id, special)
}
func (spm *SentencePieceModel) split(s string) iter.Seq[string] {
return func(yield func(string) bool) {
for m, _ := spm.pre.FindStringMatch(s); m != nil; m, _ = spm.pre.FindNextMatch(m) {
if !yield(m.String()) {
break
}
}
}
}
func (spm SentencePieceModel) Encode(s string) ([]int32, error) {
fragments := []fragment{{value: s}}
for _, special := range spm.vocab.SpecialVocabulary() {
// TODO: process special tokens concurrently
id := spm.vocab.Encode(special)
for i := 0; i < len(fragments); i++ {
frag := fragments[i]
if len(frag.ids) > 0 {
continue
}
var middle []fragment
switch i := strings.Index(frag.value, special); {
case i < 0:
middle = append(middle, frag)
case i > 0:
middle = append(middle, fragment{value: frag.value[:i]})
fallthrough
default:
middle = append(middle, fragment{value: special, ids: []int32{id}})
if rest := frag.value[i+len(special):]; rest != "" {
middle = append(middle, fragment{value: rest})
}
}
fragments = append(fragments[:i], append(middle, fragments[i+1:]...)...)
}
}
slog.Debug("fragments", "frags", fragments)
var ids []int32
for _, frag := range fragments {
if len(frag.ids) > 0 {
ids = append(ids, frag.ids...)
continue
}
for split := range spm.split(frag.value) {
split = replaceWhitespaceBySeperator(split)
var sb strings.Builder
sb.Write([]byte(split))
if id := spm.vocab.Encode(sb.String()); id >= 0 {
ids = append(ids, id)
continue
}
runes := []rune(sb.String())
pq := queue.NewWith(func(a, b any) int {
priA := a.(*candidate)
priB := b.(*candidate)
if priA.score > priB.score || (priA.score == priB.score && priA.a < priB.a) {
return 1
}
return -1
})
merges := make([]merge, len(runes))
for r := range runes {
merges[r] = merge{
p: r - 1,
n: r + 1,
runes: []rune{runes[r]},
}
}
pairwise := func(a, b int) *candidate {
if a < 0 || b >= len(runes) {
return nil
}
left, right := string(merges[a].runes), string(merges[b].runes)
if id := spm.vocab.Encode(left + right); id >= 0 {
return &candidate{
a: a,
b: b,
length: len(left + " " + right),
score: spm.vocab.Scores[id],
}
}
return nil
}
for i := range len(runes) - 1 {
if pair := pairwise(i, i+1); pair != nil {
pq.Enqueue(pair)
}
}
pqv := pq.Values()
for _, v := range pqv {
e := v.(*candidate)
slog.Debug("candidate", "candidate", e)
}
for !pq.Empty() {
v, _ := pq.Dequeue()
pair := v.(*candidate)
left, right := merges[pair.a], merges[pair.b]
if len(left.runes) == 0 || len(right.runes) == 0 {
continue
}
merges[pair.a].runes = append(left.runes, right.runes...)
merges[pair.b].runes = nil
merges[pair.a].n = right.n
if right.n < len(merges) {
merges[right.n].p = pair.a
}
if pair := pairwise(merges[pair.a].p, pair.a); pair != nil {
pq.Enqueue(pair)
}
if pair := pairwise(pair.a, merges[pair.a].n); pair != nil {
pq.Enqueue(pair)
}
}
slog.Debug("merges", "merges", merges)
for _, merge := range merges {
if len(merge.runes) > 0 {
if id := spm.vocab.Encode(string(merge.runes)); id >= 0 {
ids = append(ids, id)
} else {
slog.Debug("missing token", "token", string(merge.runes))
}
}
}
}
}
slog.Debug("encoded", "ids", ids)
return ids, nil
}
type candidate struct {
a, b int
score float32
length int
}
func (spm SentencePieceModel) Decode(ids []int32) (string, error) {
var sb strings.Builder
for _, id := range ids {
data := spm.vocab.Decode(id)
data = strings.ReplaceAll(data, spmWhitespaceSep, " ")
if _, err := sb.WriteString(data); err != nil {
return "", err
}
}
slog.Debug("decoded", "ids", ids, "text", sb.String())
return sb.String(), nil
}

View File

@@ -813,8 +813,6 @@ func (s *Server) loadModel(
panic(err)
}
slog.Info("system", "info", s.model.Backend().SystemInfo() /* "threads", *threads */)
// TODO(jessegross): LoRA loading
if lpath.String() != "" {
panic("loras are not yet implemented")
@@ -883,6 +881,7 @@ func Execute(args []string) error {
})
slog.SetDefault(slog.New(handler))
slog.Info("starting ollama engine")
// TODO(jessegross): Some system info would be useful
server := &Server{
batchSize: *batchSize,