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server : enable cache_prompt by default #10501

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Nov 25, 2024
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server : enable cache_prompt by default #10501

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2 changes: 1 addition & 1 deletion examples/server/README.md
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Expand Up @@ -412,7 +412,7 @@ node index.js

`id_slot`: Assign the completion task to an specific slot. If is -1 the task will be assigned to a Idle slot. Default: `-1`

`cache_prompt`: Re-use KV cache from a previous request if possible. This way the common prefix does not have to be re-processed, only the suffix that differs between the requests. Because (depending on the backend) the logits are **not** guaranteed to be bit-for-bit identical for different batch sizes (prompt processing vs. token generation) enabling this option can cause nondeterministic results. Default: `false`
`cache_prompt`: Re-use KV cache from a previous request if possible. This way the common prefix does not have to be re-processed, only the suffix that differs between the requests. Because (depending on the backend) the logits are **not** guaranteed to be bit-for-bit identical for different batch sizes (prompt processing vs. token generation) enabling this option can cause nondeterministic results. Default: `true`

`samplers`: The order the samplers should be applied in. An array of strings representing sampler type names. If a sampler is not set, it will not be used. If a sampler is specified more than once, it will be applied multiple times. Default: `["dry", "top_k", "typ_p", "top_p", "min_p", "xtc", "temperature"]` - these are all the available values.

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4 changes: 2 additions & 2 deletions examples/server/server.cpp
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Expand Up @@ -111,7 +111,7 @@ struct server_static_file {

struct slot_params {
bool stream = true;
bool cache_prompt = false; // remember the prompt to avoid reprocessing all prompt
bool cache_prompt = true; // remember the prompt to avoid reprocessing all prompt

int32_t n_keep = 0; // number of tokens to keep from initial prompt
int32_t n_discard = 0; // number of tokens after n_keep that may be discarded when shifting context, 0 defaults to half
Expand Down Expand Up @@ -882,7 +882,7 @@ struct server_context {
}

slot.params.stream = json_value(data, "stream", false);
slot.params.cache_prompt = json_value(data, "cache_prompt", false);
slot.params.cache_prompt = json_value(data, "cache_prompt", true);
slot.params.n_predict = json_value(data, "n_predict", json_value(data, "max_tokens", defaults.n_predict));
slot.params.n_indent = json_value(data, "n_indent", defaults.n_indent);
slot.params.n_keep = json_value(data, "n_keep", defaults.n_keep);
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