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ztxz16 avatar ztxz16 commented on September 27, 2024

用fp16模型首token基本上没延时，int8模型的我还没弄好.. 估计要等等
主要是因为fp16有cublas的函数可以直接用，int8里面是float * int8 -> float的矩阵乘法，没有现成的加速库

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rayle01 avatar rayle01 commented on September 27, 2024

给力，刚提交的代码是不是fp16的首token改错了，又回到2s~3s的水平了。12号拉的代码速度还只有200ms左右

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ztxz16 avatar ztxz16 commented on September 27, 2024

给力，刚提交的代码是不是fp16的首token改错了，又回到2s~3s的水平了。12号拉的代码速度还只有200ms左右

啊，具体是什么模型？ 我刚才测试了一下是正常的，fp16首token我这边基本没延迟

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rayle01 avatar rayle01 commented on September 27, 2024

chatglm，拉取的最新的代码转fp16后， 打开chatglm.cpp中打印每个token时延，出的结果如下（图一）。同样的query在12号速度是可以的（图2）。输入长度1000+
chatglm-fp16-generate-throughput
image

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ztxz16 avatar ztxz16 commented on September 27, 2024

chatglm，拉取的最新的代码转fp16后， 打开chatglm.cpp中打印每个token时延，出的结果如下（图一）。同样的query在12号速度是可以的（图2）。输入长度1000+ chatglm-fp16-generate-throughput image

已修复，谢谢提出

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rayle01 avatar rayle01 commented on September 27, 2024

嗯，确认了速度已改过来，给力

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ray-008 avatar ray-008 commented on September 27, 2024

用fp16模型首token基本上没延时，int8模型的我还没弄好.. 估计要等等 主要是因为fp16有cublas的函数可以直接用，int8里面是float * int8 -> float的矩阵乘法，没有现成的加速库

我用int4后的模型也出现这个问题，当提示词很长的时候，第一个token就会很慢。fp16就很快，目前还没有很好的解决办法是吧？

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