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‎LICENSE

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
MIT License
22

3-
Copyright (c) 2023 SciSharp STACK
3+
Copyright (c) 2025 SciSharp STACK
44

55
Permission is hereby granted, free of charge, to any person obtaining a copy
66
of this software and associated documentation files (the "Software"), to deal
@@ -18,4 +18,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
1818
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
1919
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
2020
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21-
SOFTWARE.
21+
SOFTWARE.

‎LLama.KernelMemory/BuilderExtensions.cs

Lines changed: 8 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -67,25 +67,28 @@ public static IKernelMemoryBuilder WithLLamaSharpTextGeneration(this IKernelMemo
6767
/// <param name="weights"></param>
6868
/// <param name="context"></param>
6969
/// <returns>The KernelMemoryBuilder instance with LLamaSharpTextEmbeddingGeneration and LLamaSharpTextGeneration added.</returns>
70-
public static IKernelMemoryBuilder WithLLamaSharpDefaults(this IKernelMemoryBuilder builder, LLamaSharpConfig config, LLamaWeights? weights=null, LLamaContext? context=null)
70+
public static IKernelMemoryBuilder WithLLamaSharpDefaults(this IKernelMemoryBuilder builder, LLamaSharpConfig config, LLamaWeights? weights=null)
7171
{
7272
var parameters = new ModelParams(config.ModelPath)
7373
{
7474
ContextSize = config.ContextSize ?? 2048,
7575
GpuLayerCount = config.GpuLayerCount ?? 20,
7676
MainGpu = config.MainGpu,
77-
SplitMode = config.SplitMode
77+
SplitMode = config.SplitMode,
78+
BatchSize = 512,
79+
UBatchSize = 512,
80+
FlashAttention = true,
81+
UseMemorymap = true
7882
};
7983

80-
if (weights == null || context == null)
84+
if (weights == null)
8185
{
8286
weights = LLamaWeights.LoadFromFile(parameters);
83-
context = weights.CreateContext(parameters);
8487
}
8588

8689
var executor = new StatelessExecutor(weights, parameters);
8790
builder.WithLLamaSharpTextEmbeddingGeneration(new LLamaSharpTextEmbeddingGenerator(config, weights));
88-
builder.WithLLamaSharpTextGeneration(new LlamaSharpTextGenerator(weights, context, executor, config.DefaultInferenceParams));
91+
builder.WithLLamaSharpTextGeneration(new LlamaSharpTextGenerator(weights, config, executor));
8992
return builder;
9093
}
9194
}

‎LLama.KernelMemory/LLamaSharpTextEmbeddingGenerator.cs

Lines changed: 30 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -3,6 +3,7 @@
33
using LLama.Native;
44
using Microsoft.KernelMemory;
55
using Microsoft.KernelMemory.AI;
6+
using System.Text;
67

78
namespace LLamaSharp.KernelMemory
89
{
@@ -18,6 +19,8 @@ public sealed class LLamaSharpTextEmbeddingGenerator
1819
private readonly LLamaEmbedder _embedder;
1920
private readonly bool _ownsEmbedder;
2021

22+
private readonly ModelParams? @params;
23+
2124
/// <inheritdoc/>
2225
public int MaxTokens { get; }
2326

@@ -29,13 +32,16 @@ public LLamaSharpTextEmbeddingGenerator(LLamaSharpConfig config)
2932
{
3033
MaxTokens = (int?)config.ContextSize ?? 2048;
3134

32-
var @params = new ModelParams(config.ModelPath)
35+
@params = new ModelParams(config.ModelPath)
3336
{
3437
ContextSize = config?.ContextSize ?? 2048,
3538
GpuLayerCount = config?.GpuLayerCount ?? 20,
36-
//Embeddings = true,
3739
MainGpu = config?.MainGpu ?? 0,
38-
SplitMode = config?.SplitMode ?? LLama.Native.GPUSplitMode.None,
40+
SplitMode = config?.SplitMode ?? LLama.Native.GPUSplitMode.Layer,
41+
BatchSize = 512,
42+
UBatchSize = 512,
43+
FlashAttention = true,
44+
UseMemorymap = true,
3945
PoolingType = LLamaPoolingType.Mean,
4046
};
4147

@@ -54,13 +60,16 @@ public LLamaSharpTextEmbeddingGenerator(LLamaSharpConfig config, LLamaWeights we
5460
{
5561
MaxTokens = (int?)config.ContextSize ?? 2048;
5662

57-
var @params = new ModelParams(config.ModelPath)
63+
@params = new ModelParams(config.ModelPath)
5864
{
5965
ContextSize = config?.ContextSize ?? 2048,
6066
GpuLayerCount = config?.GpuLayerCount ?? 20,
61-
//Embeddings = true,
6267
MainGpu = config?.MainGpu ?? 0,
63-
SplitMode = config?.SplitMode ?? LLama.Native.GPUSplitMode.None,
68+
SplitMode = config?.SplitMode ?? LLama.Native.GPUSplitMode.Layer,
69+
BatchSize = 512,
70+
UBatchSize = 512,
71+
FlashAttention = true,
72+
UseMemorymap = true,
6473
PoolingType = LLamaPoolingType.Mean,
6574
};
6675
_weights = weights;
@@ -97,26 +106,31 @@ public async Task<Embedding> GenerateEmbeddingAsync(string text, CancellationTok
97106
return new Embedding(embeddings.First());
98107
}
99108

100-
/// <inheritdoc/>
101-
public int CountTokens(string text) => _embedder.Context.Tokenize(text, special: true).Length;
109+
/// <summary>
110+
/// Count the tokens in the input text
111+
/// </summary>
112+
/// <param name="text">input text</param>
113+
/// <param name="parameters">context parameters</param>
114+
/// <returns></returns>
115+
public int CountTokens(string text)
116+
{
117+
return _weights!.Tokenize(text, true, special: true, Encoding.UTF8).Length;
118+
}
102119

103120
/// <summary>
104121
/// Get the list of tokens for the input text
105122
/// </summary>
106123
/// <param name="text">Input string to be tokenized</param>
124+
/// <param name="parameters">Context parameters</param>
107125
/// <returns>Read-only list of tokens for the input test</returns>
108126
/// <remarks>
109127
/// It throws if text is null and Includes empty stop token because addBos is left true to be consistent with the CountTokens implementation.</remarks>
110-
/// <see cref="CountTokens(string)"/>
128+
/// <see cref="CountTokens(string, IContextParams)"/>
111129
public IReadOnlyList<string> GetTokens(string text)
112130
{
113-
/* see relevant unit tests for important implementation notes regarding unicode */
114-
var context = _embedder.Context;
115-
var numericTokens = context.Tokenize(text, special: true);
116-
var decoder = new StreamingTokenDecoder(context);
117-
return numericTokens
118-
.Select(x => { decoder.Add(x); return decoder.Read(); })
119-
.ToList();
131+
var numericTokens = _weights!.Tokenize(text, true, special: true, Encoding.UTF8);
132+
var decoder = new StreamingTokenDecoder(Encoding.UTF8, _weights);
133+
return numericTokens.Select(x => { decoder.Add(x); return decoder.Read(); }).ToList();
120134
}
121135
}
122136
}

‎LLama.KernelMemory/LlamaSharpTextGenerator.cs

Lines changed: 44 additions & 30 deletions
Original file line numberDiff line numberDiff line change
@@ -3,6 +3,7 @@
33
using LLama.Sampling;
44
using Microsoft.KernelMemory;
55
using Microsoft.KernelMemory.AI;
6+
using System.Text;
67

78
namespace LLamaSharp.KernelMemory
89
{
@@ -17,11 +18,10 @@ public sealed class LlamaSharpTextGenerator
1718
private readonly LLamaWeights _weights;
1819
private readonly bool _ownsWeights;
1920

20-
private readonly LLamaContext _context;
21-
private readonly bool _ownsContext;
22-
2321
private readonly InferenceParams? _defaultInferenceParams;
2422

23+
private readonly ModelParams? @params;
24+
2525
public int MaxTokenTotal { get; }
2626

2727
/// <summary>
@@ -30,36 +30,48 @@ public sealed class LlamaSharpTextGenerator
3030
/// <param name="config">The configuration for LLamaSharp.</param>
3131
public LlamaSharpTextGenerator(LLamaSharpConfig config)
3232
{
33-
var parameters = new ModelParams(config.ModelPath)
33+
@params = new ModelParams(config.ModelPath)
3434
{
3535
ContextSize = config?.ContextSize ?? 2048,
3636
GpuLayerCount = config?.GpuLayerCount ?? 20,
3737
MainGpu = config?.MainGpu ?? 0,
38-
SplitMode = config?.SplitMode ?? LLama.Native.GPUSplitMode.None,
38+
SplitMode = config?.SplitMode ?? LLama.Native.GPUSplitMode.Layer,
39+
BatchSize = 512,
40+
UBatchSize = 512,
41+
FlashAttention = true,
42+
UseMemorymap = true
3943
};
40-
_weights = LLamaWeights.LoadFromFile(parameters);
41-
_context = _weights.CreateContext(parameters);
42-
_executor = new StatelessExecutor(_weights, parameters);
43-
_defaultInferenceParams = config.DefaultInferenceParams;
44-
_ownsWeights = _ownsContext = true;
45-
MaxTokenTotal = (int)parameters.ContextSize;
44+
_weights = LLamaWeights.LoadFromFile(@params);
45+
_executor = new StatelessExecutor(_weights, @params);
46+
_defaultInferenceParams = config!.DefaultInferenceParams;
47+
_ownsWeights = true;
48+
MaxTokenTotal = (int)@params.ContextSize;
4649
}
4750

4851
/// <summary>
4952
/// Initializes a new instance of the <see cref="LlamaSharpTextGenerator"/> class from reused weights, context and executor.
5053
/// If executor is not specified, then a StatelessExecutor will be created with `context.Params`. So far only `StatelessExecutor` is expected.
5154
/// </summary>
5255
/// <param name="weights">A LLamaWeights object.</param>
53-
/// <param name="context">A LLamaContext object.</param>
5456
/// <param name="executor">An executor. Currently only StatelessExecutor is expected.</param>
55-
/// <param name="inferenceParams">Inference parameters to use by default</param>
56-
public LlamaSharpTextGenerator(LLamaWeights weights, LLamaContext context, StatelessExecutor? executor = null, InferenceParams? inferenceParams = null)
57+
public LlamaSharpTextGenerator(LLamaWeights weights, LLamaSharpConfig config, StatelessExecutor? executor = null)
5758
{
59+
InferenceParams? inferenceParams = config.DefaultInferenceParams;
5860
_weights = weights;
59-
_context = context;
60-
_executor = executor ?? new StatelessExecutor(_weights, _context.Params);
61+
@params = new ModelParams("")
62+
{
63+
ContextSize = config?.ContextSize ?? 2048,
64+
GpuLayerCount = config?.GpuLayerCount ?? 20,
65+
MainGpu = config?.MainGpu ?? 0,
66+
SplitMode = config?.SplitMode ?? LLama.Native.GPUSplitMode.Layer,
67+
BatchSize = 512,
68+
UBatchSize = 512,
69+
FlashAttention = true,
70+
UseMemorymap = true
71+
};
72+
_executor = executor ?? new StatelessExecutor(_weights, @params);
6173
_defaultInferenceParams = inferenceParams;
62-
MaxTokenTotal = (int)_context.ContextSize;
74+
MaxTokenTotal = (int)@params.ContextSize;
6375
}
6476

6577
/// <inheritdoc/>
@@ -69,10 +81,6 @@ public void Dispose()
6981
{
7082
_weights.Dispose();
7183
}
72-
if (_ownsContext)
73-
{
74-
_context.Dispose();
75-
}
7684
}
7785

7886
/// <inheritdoc/>
@@ -117,25 +125,31 @@ private static InferenceParams OptionsToParams(TextGenerationOptions options, In
117125
};
118126
}
119127

120-
/// <inheritdoc/>
121-
public int CountTokens(string text) => _context.Tokenize(text, special: true).Length;
128+
/// <summary>
129+
/// Count the tokens in the input text
130+
/// </summary>
131+
/// <param name="text">input text</param>
132+
/// <param name="parameters">context parameters</param>
133+
/// <returns></returns>
134+
public int CountTokens(string text)
135+
{
136+
return _weights!.Tokenize(text, true, special: true, Encoding.UTF8).Length;
137+
}
122138

123139
/// <summary>
124140
/// Get the list of tokens for the input text
125141
/// </summary>
126142
/// <param name="text">Input string to be tokenized</param>
143+
/// <param name="parameters">Context parameters</param>
127144
/// <returns>Read-only list of tokens for the input test</returns>
128145
/// <remarks>
129146
/// It throws if text is null and Includes empty stop token because addBos is left true to be consistent with the CountTokens implementation.</remarks>
130-
/// <see cref="CountTokens(string)"/>
147+
/// <see cref="CountTokens(string, IContextParams)"/>
131148
public IReadOnlyList<string> GetTokens(string text)
132149
{
133-
/* see relevant unit tests for important implementation notes regarding unicode */
134-
var numericTokens = _context.Tokenize(text, special: true);
135-
var decoder = new StreamingTokenDecoder(_context);
136-
return numericTokens
137-
.Select(x => { decoder.Add(x); return decoder.Read(); })
138-
.ToList();
150+
var numericTokens = _weights!.Tokenize(text, true, special: true, Encoding.UTF8);
151+
var decoder = new StreamingTokenDecoder(Encoding.UTF8, _weights);
152+
return numericTokens.Select(x => { decoder.Add(x); return decoder.Read(); }).ToList();
139153
}
140154
}
141155
}

‎LLama.Unittest/LLamaEmbedderTests.cs

Lines changed: 30 additions & 25 deletions
Original file line numberDiff line numberDiff line change
@@ -42,37 +42,42 @@ private async Task CompareEmbeddings(string modelPath)
4242
var spoon = (await embedder.GetEmbeddings("The spoon is not real")).Single().EuclideanNormalization();
4343
Assert.DoesNotContain(float.NaN, spoon);
4444

45-
var generator = (IEmbeddingGenerator<string, Embedding<float>>)embedder;
46-
Assert.NotNull(generator.GetService<EmbeddingGeneratorMetadata>());
47-
Assert.Equal(nameof(LLamaEmbedder), generator.GetService<EmbeddingGeneratorMetadata>()?.ProviderName);
48-
Assert.NotNull(generator.GetService<EmbeddingGeneratorMetadata>()?.DefaultModelId);
49-
Assert.NotEmpty(generator.GetService<EmbeddingGeneratorMetadata>()?.DefaultModelId!);
50-
Assert.Same(embedder, generator.GetService<LLamaEmbedder>());
51-
Assert.Same(generator, generator.GetService<IEmbeddingGenerator<string, Embedding<float>>>());
52-
Assert.Null(generator.GetService<string>());
53-
54-
var embeddings = await generator.GenerateAsync(
55-
[
56-
"The cat is cute",
45+
if (false)
46+
{
47+
//TODO: the below does not work with the new memory efficient context handling - we probably need to define Microsoft.Extensions.AI.IEmbeddingGenerator GetService interface that creates the context on the fly
48+
49+
var generator = (IEmbeddingGenerator<string, Embedding<float>>)embedder;
50+
Assert.NotNull(generator.GetService<EmbeddingGeneratorMetadata>());
51+
Assert.Equal(nameof(LLamaEmbedder), generator.GetService<EmbeddingGeneratorMetadata>()?.ProviderName);
52+
Assert.NotNull(generator.GetService<EmbeddingGeneratorMetadata>()?.DefaultModelId);
53+
Assert.NotEmpty(generator.GetService<EmbeddingGeneratorMetadata>()?.DefaultModelId!);
54+
Assert.Same(embedder, generator.GetService<LLamaEmbedder>());
55+
Assert.Same(generator, generator.GetService<IEmbeddingGenerator<string, Embedding<float>>>());
56+
Assert.Null(generator.GetService<string>());
57+
58+
var embeddings = await generator.GenerateAsync(
59+
[
60+
"The cat is cute",
5761
"The kitten is cute",
5862
"The spoon is not real"
59-
]);
60-
Assert.All(cat.Zip(embeddings[0].Vector.Span.EuclideanNormalization()), e => Assert.Equal(e.First, e.Second, 0.001));
61-
Assert.All(kitten.Zip(embeddings[1].Vector.Span.EuclideanNormalization()), e => Assert.Equal(e.First, e.Second, 0.001));
62-
Assert.All(spoon.Zip(embeddings[2].Vector.Span.EuclideanNormalization()), e => Assert.Equal(e.First, e.Second, 0.001));
63+
]);
64+
Assert.All(cat.Zip(embeddings[0].Vector.Span.EuclideanNormalization()), e => Assert.Equal(e.First, e.Second, 0.001));
65+
Assert.All(kitten.Zip(embeddings[1].Vector.Span.EuclideanNormalization()), e => Assert.Equal(e.First, e.Second, 0.001));
66+
Assert.All(spoon.Zip(embeddings[2].Vector.Span.EuclideanNormalization()), e => Assert.Equal(e.First, e.Second, 0.001));
6367

64-
_testOutputHelper.WriteLine($"Cat = [{string.Join(",", cat.AsMemory().Slice(0, 7).ToArray())}...]");
65-
_testOutputHelper.WriteLine($"Kitten = [{string.Join(",", kitten.AsMemory().Slice(0, 7).ToArray())}...]");
66-
_testOutputHelper.WriteLine($"Spoon = [{string.Join(",", spoon.AsMemory().Slice(0, 7).ToArray())}...]");
68+
_testOutputHelper.WriteLine($"Cat = [{string.Join(",", cat.AsMemory().Slice(0, 7).ToArray())}...]");
69+
_testOutputHelper.WriteLine($"Kitten = [{string.Join(",", kitten.AsMemory().Slice(0, 7).ToArray())}...]");
70+
_testOutputHelper.WriteLine($"Spoon = [{string.Join(",", spoon.AsMemory().Slice(0, 7).ToArray())}...]");
6771

68-
var close = 1 - Dot(cat, kitten);
69-
var far = 1 - Dot(cat, spoon);
72+
var close = 1 - Dot(cat, kitten);
73+
var far = 1 - Dot(cat, spoon);
7074

71-
_testOutputHelper.WriteLine("");
72-
_testOutputHelper.WriteLine($"Cat.Kitten (Close): {close:F4}");
73-
_testOutputHelper.WriteLine($"Cat.Spoon (Far): {far:F4}");
75+
_testOutputHelper.WriteLine("");
76+
_testOutputHelper.WriteLine($"Cat.Kitten (Close): {close:F4}");
77+
_testOutputHelper.WriteLine($"Cat.Spoon (Far): {far:F4}");
7478

75-
Assert.True(close < far);
79+
Assert.True(close < far);
80+
}
7681
}
7782

7883
[Fact]

‎LLama.Unittest/Native/SafeLlamaModelHandleTests.cs

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -19,13 +19,12 @@ public SafeLlamaModelHandleTests()
1919
};
2020
_model = LLamaWeights.LoadFromFile(@params);
2121
}
22-
22+
2323
// Note: This test is flakey, it appears to often (but not always) fail the first time it is run after downloading the model file, but then succeed every time after!
2424
//[SkippableFact]
2525
//public void MetadataValByKey_ReturnsCorrectly()
2626
//{
2727
// Skip.If(RuntimeInformation.IsOSPlatform(OSPlatform.OSX), "Skipping this test on macOS because for some reason the meta data is incorrect, but the rest of tests work well on mscOS [Check later!].");
28-
2928
// const string key = "general.name";
3029
// var template = _model.NativeHandle.MetadataValueByKey(key);
3130
// var name = Encoding.UTF8.GetStringFromSpan(template!.Value.Span);

‎LLama.Web/Common/InferenceOptions.cs

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -21,5 +21,8 @@ public class InferenceOptions
2121

2222
/// <inheritdoc />
2323
public ISamplingPipeline SamplingPipeline { get; set; } = new DefaultSamplingPipeline();
24+
25+
/// <inheritdoc />
26+
public bool DecodeSpecialTokens { get; set; }
2427
}
2528
}

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