[webgpu] Use 64 as the workgroup size of DP4AMatMulQuantize #24129
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Ususally, workgroup size 1 is not a good option for compute shader. It means that only one thread is active in one workgroup. This PR uses 64 as the workgroup size of DP4AMatMulQuantize. Notice that half of time of DP4AMatMulQuantize is reduced in phi4 on NV RTX 2000 Ada.
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Usually, workgroup size 1 is not a good option for compute shader. It means that only one thread is active in one workgroup. This PR uses 64 as the workgroup size of DP4AMatMulQuantize. Notice that half of time of DP4AMatMulQuantize is reduced in phi4 on NV RTX 2000 Ada.