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Computing tensor statistics for /work/Spark-X2.6-1.7B/imatrix/imatrix.gguf (168 tensors)
Layer | Tensor | Mean StdDev Skew Kurt H Norm | ∑ E[A²] Gain | L2 Dist PCC Cov
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0 | blk.0.attn_gate.weight | 0.0026 0.1856 -0.0033 -0.8594 99.20% | 208.0695 nan | nan nan nan
0 | blk.0.attn_output.weight | 0.0001 0.0133 -0.0386 0.3061 95.44% | 0.6255 nan | nan nan nan
0 | blk.0.attn_qkv.weight | 0.0026 0.1856 -0.0033 -0.8594 99.20% | 208.0695 nan | nan nan nan
0 | blk.0.ffn_down.weight | -0.0000 0.0018 12.0437 775.1798 94.22% | 0.2817 nan | nan nan nan
0 | blk.0.ffn_gate.weight | 0.0007 0.0400 0.9223 10.8117 98.10% | 16.4046 nan | nan nan nan
0 | blk.0.ffn_up.weight | 0.0007 0.0400 0.9223 10.8117 98.10% | 16.4046 nan | nan nan nan
1 | blk.1.attn_gate.weight | 0.0005 0.1244 0.4759 3.1000 99.13% | 169.0509 0.90 | 8.8649 0.2500 0.0058
1 | blk.1.attn_output.weight | 0.0001 0.0085 -0.0914 0.2814 97.50% | 0.4488 0.85 | 0.7152 0.0001 0.0000
1 | blk.1.attn_qkv.weight | 0.0005 0.1244 0.4759 3.1000 99.13% | 169.0509 0.90 | 8.8649 0.2500 0.0058
1 | blk.1.ffn_down.weight | 0.0000 0.0021 -0.0106 141.4430 95.33% | 0.3504 1.12 | 0.2299 -0.0044 -0.0000
1 | blk.1.ffn_gate.weight | -0.0008 0.0444 0.1153 0.6229 99.32% | 18.5448 1.06 | 1.9528 0.4823 0.0009
1 | blk.1.ffn_up.weight | -0.0008 0.0444 0.1153 0.6229 99.32% | 18.5448 1.06 | 1.9528 0.4823 0.0009
2 | blk.2.attn_gate.weight | -0.0018 0.0976 0.1574 1.8248 99.31% | 119.5071 0.84 | 3.7521 0.7465 0.0091
2 | blk.2.attn_output.weight | 0.0000 0.0100 -0.0617 -0.0556 98.16% | 0.6581 1.21 | 0.5935 0.0003 0.0000
2 | blk.2.attn_qkv.weight | -0.0018 0.0976 0.1574 1.8248 99.31% | 119.5071 0.84 | 3.7521 0.7465 0.0091
2 | blk.2.ffn_down.weight | -0.0000 0.0037 3.0090 217.1035 91.76% | 0.5253 1.22 | 0.3424 0.0189 0.0000
2 | blk.2.ffn_gate.weight | -0.0011 0.0473 -0.0182 0.4175 99.37% | 21.0448 1.07 | 1.6287 0.6937 0.0015
2 | blk.2.ffn_up.weight | -0.0011 0.0473 -0.0182 0.4175 99.37% | 21.0448 1.07 | 1.6287 0.6937 0.0015
3 | blk.3.attn_gate.weight | -0.0004 0.1301 -0.0370 -0.0932 99.72% | 254.1183 1.46 | 4.2529 0.6939 0.0088
3 | blk.3.attn_output.weight | 0.0008 0.0147 0.0905 1.0903 97.34% | 1.1785 1.34 | 0.8050 0.0026 0.0000
3 | blk.3.attn_qkv.weight | -0.0004 0.1301 -0.0370 -0.0932 99.72% | 254.1183 1.46 | 4.2529 0.6939 0.0088
3 | blk.3.ffn_down.weight | -0.0001 0.0041 -2.0522 52.8336 95.15% | 0.8170 1.25 | 0.4497 0.0016 0.0000
3 | blk.3.ffn_gate.weight | -0.0011 0.0538 -0.0184 0.0427 99.36% | 25.4470 1.10 | 1.8031 0.6962 0.0018
3 | blk.3.ffn_up.weight | -0.0011 0.0538 -0.0184 0.0427 99.36% | 25.4470 1.10 | 1.8031 0.6962 0.0018
4 | blk.4.attn_gate.weight | -0.0005 0.1142 0.0626 0.2714 99.52% | 149.8493 0.77 | 4.8066 0.6289 0.0093
4 | blk.4.attn_output.weight | 0.0003 0.0125 0.0596 0.8530 98.14% | 0.9526 0.90 | 0.8882 -0.0338 -0.0000
4 | blk.4.attn_qkv.weight | -0.0005 0.1142 0.0626 0.2714 99.52% | 149.8493 0.77 | 4.8066 0.6289 0.0093
4 | blk.4.ffn_down.weight | 0.0001 0.0042 0.2067 33.6999 96.72% | 1.0210 1.12 | 0.4794 0.0048 0.0000
4 | blk.4.ffn_gate.weight | 0.0001 0.0555 -0.0197 0.1071 99.42% | 29.7065 1.08 | 2.3132 0.5634 0.0017
4 | blk.4.ffn_up.weight | 0.0001 0.0555 -0.0197 0.1071 99.42% | 29.7065 1.08 | 2.3132 0.5634 0.0017
5 | blk.5.attn_gate.weight | -0.0001 0.1057 0.0778 0.2431 99.62% | 154.1756 1.01 | 3.8379 0.7051 0.0085
5 | blk.5.attn_output.weight | -0.0007 0.0144 -0.0771 0.6503 98.07% | 1.6409 1.31 | 0.8634 0.0048 0.0000
5 | blk.5.attn_qkv.weight | -0.0001 0.1057 0.0778 0.2431 99.62% | 154.1756 1.01 | 3.8379 0.7051 0.0085
5 | blk.5.ffn_down.weight | -0.0000 0.0054 -1.2379 34.5862 95.58% | 1.4075 1.17 | 0.5636 -0.0118 -0.0000
5 | blk.5.ffn_gate.weight | 0.0014 0.0627 0.0827 0.4537 99.16% | 33.1255 1.06 | 2.0858 0.7028 0.0024
5 | blk.5.ffn_up.weight | 0.0014 0.0627 0.0827 0.4537 99.16% | 33.1255 1.06 | 2.0858 0.7028 0.0024
6 | blk.6.attn_gate.weight | 0.0032 0.1055 0.1233 0.2281 99.51% | 127.4872 0.91 | 3.1691 0.7807 0.0087
6 | blk.6.attn_output.weight | 0.0003 0.0177 0.0118 0.1163 98.42% | 1.9226 1.08 | 1.0220 0.0224 0.0000
6 | blk.6.attn_qkv.weight | 0.0032 0.1055 0.1233 0.2281 99.51% | 127.4872 0.91 | 3.1691 0.7807 0.0087
6 | blk.6.ffn_down.weight | -0.0000 0.0060 0.2558 26.0249 46.04% | 3.4010 1.55 | 0.6578 0.0013 0.0000
6 | blk.6.ffn_gate.weight | 0.0013 0.0636 0.0559 0.0606 99.18% | 32.6327 0.99 | 2.3021 0.6760 0.0027
6 | blk.6.ffn_up.weight | 0.0013 0.0636 0.0559 0.0606 99.18% | 32.6327 0.99 | 2.3021 0.6760 0.0027
7 | blk.7.attn_gate.weight | 0.0017 0.1368 -0.0604 -0.2070 99.68% | 264.3007 1.44 | 4.5185 0.6885 0.0099
7 | blk.7.attn_output.weight | 0.0003 0.0234 -0.0242 0.2765 98.45% | 3.8669 1.42 | 1.3059 0.0347 0.0000
7 | blk.7.attn_qkv.weight | 0.0017 0.1368 -0.0604 -0.2070 99.68% | 264.3007 1.44 | 4.5185 0.6885 0.0099
7 | blk.7.ffn_down.weight | -0.0001 0.0072 -1.2841 45.6102 82.62% | 2.2557 0.81 | 0.7691 -0.0109 -0.0000
7 | blk.7.ffn_gate.weight | 0.0019 0.0678 -0.0658 0.1779 99.06% | 36.2248 1.05 | 2.5127 0.6451 0.0028
7 | blk.7.ffn_up.weight | 0.0019 0.0678 -0.0658 0.1779 99.06% | 36.2248 1.05 | 2.5127 0.6451 0.0028
8 | blk.8.attn_gate.weight | 0.0023 0.1142 -0.0274 0.0754 99.49% | 152.0078 0.76 | 5.3526 0.5686 0.0089
8 | blk.8.attn_output.weight | 0.0013 0.0193 -0.0402 0.1104 98.44% | 2.5038 0.80 | 1.3254 0.0718 0.0000
8 | blk.8.attn_qkv.weight | 0.0023 0.1142 -0.0274 0.0754 99.49% | 152.0078 0.76 | 5.3526 0.5686 0.0089
8 | blk.8.ffn_down.weight | 0.0001 0.0073 -0.0632 9.8683 93.10% | 1.9231 0.92 | 0.8375 0.0045 0.0000
8 | blk.8.ffn_gate.weight | 0.0003 0.0663 -0.0602 0.4139 98.97% | 34.5912 0.98 | 2.6831 0.6098 0.0027
8 | blk.8.ffn_up.weight | 0.0003 0.0663 -0.0602 0.4139 98.97% | 34.5912 0.98 | 2.6831 0.6098 0.0027
9 | blk.9.attn_gate.weight | 0.0001 0.1126 -0.0737 -0.1741 99.56% | 168.0526 1.05 | 3.3152 0.7918 0.0102
9 | blk.9.attn_output.weight | 0.0001 0.0181 0.0120 0.7230 97.87% | 2.4826 1.00 | 1.2446 -0.0788 -0.0000
9 | blk.9.attn_qkv.weight | 0.0001 0.1126 -0.0737 -0.1741 99.56% | 168.0526 1.05 | 3.3152 0.7918 0.0102
9 | blk.9.ffn_down.weight | 0.0001 0.0068 0.3996 18.6334 90.34% | 1.7473 0.95 | 0.8110 0.0020 0.0000
9 | blk.9.ffn_gate.weight | 0.0015 0.0613 -0.0392 0.0032 99.15% | 31.8044 0.96 | 1.8364 0.8008 0.0033
9 | blk.9.ffn_up.weight | 0.0015 0.0613 -0.0392 0.0032 99.15% | 31.8044 0.96 | 1.8364 0.8008 0.0033
10 | blk.10.attn_gate.weight | 0.0015 0.1007 -0.0385 -0.1368 99.47% | 117.7888 0.84 | 2.4802 0.8739 0.0099
10 | blk.10.attn_output.weight | -0.0004 0.0211 -0.0347 0.3942 98.78% | 3.2970 1.15 | 1.1783 0.1242 0.0000
10 | blk.10.attn_qkv.weight | 0.0015 0.1007 -0.0385 -0.1368 99.47% | 117.7888 0.84 | 2.4802 0.8739 0.0099
10 | blk.10.ffn_down.weight | -0.0000 0.0067 -0.0469 16.4471 73.73% | 2.2496 1.13 | 0.7816 -0.0081 -0.0000
10 | blk.10.ffn_gate.weight | 0.0018 0.0569 0.0075 -0.0195 99.18% | 28.5971 0.95 | 1.7324 0.7928 0.0028
10 | blk.10.ffn_up.weight | 0.0018 0.0569 0.0075 -0.0195 99.18% | 28.5971 0.95 | 1.7324 0.7928 0.0028
11 | blk.11.attn_gate.weight | 0.0022 0.1281 0.0001 -0.1394 99.41% | 223.2627 1.38 | 3.8682 0.7460 0.0096
11 | blk.11.attn_output.weight | 0.0004 0.0273 -0.0416 0.3177 98.39% | 5.4199 1.28 | 1.5463 0.0219 0.0000
11 | blk.11.attn_qkv.weight | 0.0022 0.1281 0.0001 -0.1394 99.41% | 223.2627 1.38 | 3.8682 0.7460 0.0096
11 | blk.11.ffn_down.weight | -0.0000 0.0078 -0.3074 15.0795 91.45% | 2.2299 1.00 | 0.8438 -0.0057 -0.0000
11 | blk.11.ffn_gate.weight | 0.0007 0.0622 0.0603 -0.0600 99.16% | 34.3692 1.10 | 1.6075 0.8257 0.0029
11 | blk.11.ffn_up.weight | 0.0007 0.0622 0.0603 -0.0600 99.16% | 34.3692 1.10 | 1.6075 0.8257 0.0029
12 | blk.12.attn_gate.weight | -0.0010 0.1054 0.0792 -0.0629 99.49% | 145.8195 0.81 | 3.4681 0.8020 0.0108
12 | blk.12.attn_output.weight | -0.0011 0.0195 -0.1023 -0.2852 98.48% | 2.7775 0.72 | 1.4671 0.0748 0.0000
12 | blk.12.attn_qkv.weight | -0.0010 0.1054 0.0792 -0.0629 99.49% | 145.8195 0.81 | 3.4681 0.8020 0.0108
12 | blk.12.ffn_down.weight | -0.0001 0.0076 -3.9426 111.1582 94.76% | 2.0175 0.95 | 0.8900 0.0035 0.0000
12 | blk.12.ffn_gate.weight | 0.0002 0.0623 0.1547 0.0411 99.22% | 34.0450 1.00 | 1.9052 0.7711 0.0030
12 | blk.12.ffn_up.weight | 0.0002 0.0623 0.1547 0.0411 99.22% | 34.0450 1.00 | 1.9052 0.7711 0.0030
13 | blk.13.attn_gate.weight | -0.0013 0.0914 0.0742 -0.2595 99.53% | 100.3803 0.83 | 2.4134 0.8625 0.0083
13 | blk.13.attn_output.weight | 0.0008 0.0253 0.0901 0.8945 97.30% | 3.4267 1.11 | 1.4412 0.0099 0.0000
13 | blk.13.attn_qkv.weight | -0.0013 0.0914 0.0742 -0.2595 99.53% | 100.3803 0.83 | 2.4134 0.8625 0.0083
13 | blk.13.ffn_down.weight | -0.0000 0.0090 -0.0568 14.1205 95.15% | 2.5245 1.12 | 0.9717 -0.0133 -0.0000
13 | blk.13.ffn_gate.weight | 0.0001 0.0677 0.1087 0.1056 99.13% | 36.5560 1.04 | 2.3827 0.6746 0.0028
13 | blk.13.ffn_up.weight | 0.0001 0.0677 0.1087 0.1056 99.13% | 36.5560 1.04 | 2.3827 0.6746 0.0028
14 | blk.14.attn_gate.weight | -0.0019 0.1141 0.0142 -0.0996 99.54% | 166.3679 1.29 | 3.1475 0.7929 0.0083
14 | blk.14.attn_output.weight | 0.0030 0.0296 -0.0363 0.2274 98.34% | 5.6915 1.29 | 1.7296 0.0382 0.0000
14 | blk.14.attn_qkv.weight | -0.0019 0.1141 0.0142 -0.0996 99.54% | 166.3679 1.29 | 3.1475 0.7929 0.0083
14 | blk.14.ffn_down.weight | 0.0001 0.0099 0.4091 18.3558 92.86% | 2.9874 1.09 | 1.0891 0.0075 0.0000
14 | blk.14.ffn_gate.weight | -0.0002 0.0731 0.0112 0.1891 99.01% | 40.1153 1.05 | 2.2559 0.7517 0.0037
14 | blk.14.ffn_up.weight | -0.0002 0.0731 0.0112 0.1891 99.01% | 40.1153 1.05 | 2.2559 0.7517 0.0037
15 | blk.15.attn_gate.weight | -0.0012 0.1379 0.0374 -0.1226 99.50% | 239.8235 1.20 | 3.5760 0.8195 0.0129
15 | blk.15.attn_output.weight | 0.0011 0.0319 -0.0571 0.3060 98.46% | 7.4950 1.15 | 1.9257 0.0434 0.0000
15 | blk.15.attn_qkv.weight | -0.0012 0.1379 0.0374 -0.1226 99.50% | 239.8235 1.20 | 3.5760 0.8195 0.0129
15 | blk.15.ffn_down.weight | -0.0002 0.0113 -1.2860 26.2205 90.69% | 4.7733 1.26 | 1.2270 -0.0062 -0.0000
15 | blk.15.ffn_gate.weight | -0.0026 0.0781 0.0089 0.0062 99.11% | 45.6608 1.07 | 2.1786 0.7997 0.0046
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Spark-X2.6 1.7B GGUF · metrics

Measurements behind AtomicChat/Spark-X2.6-1.7B-GGUF, by AtomicChat.

  • results.json: every rung we built, size on disk, mean KL divergence to BF16 and top-1 agreement on eval_neutral (90 chunks of 4096 tokens); results/rows/ the same, one file per rung.
  • results/ext.json, results/ext/: the other builds we downloaded and measured on the same stand (XHToken's own files, mradermacher's i1, llama.cpp's default Q4_K_M); logs/ext-types--*.txt the tensor types inside each of them.
  • logs/kld-neutral--*.log: raw llama-perplexity --kl-divergence logs; logs/quant-*.log: llama-quantize logs.
  • ladder/: the --tensor-type rules of each rung (profile dense-spark.yaml in the AtomicChat pipeline).
  • imatrix/imatrix.gguf + imatrix.stats.txt: our importance matrix, 4,787,678 tokens of builds/spark-x26 (calib-corpora) at context 512 on the BF16 weights, --parse-special.

Stand: llama.cpp a34de8618, NVIDIA A100-SXM4-40GB, the BF16 GGUF as the reference (PPL 15.3634 on eval_neutral, self-check KLD 0). The BF16 and the 48 GB reference logits are not kept here; the model card says how to rebuild them.

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