当前位置：首页 > news >正文

CANN/hixl A3芯片性能数据

news 2026/5/14 0:40:01

HIXL在昇腾A3芯片上部分场景实测性能数据

【免费下载链接】hixlHIXL（Huawei Xfer Library）是一个灵活、高效的昇腾单边通信库，面向集群场景提供简单、可靠、高效的点对点数据传输能力。项目地址: https://gitcode.com/cann/hixl

HIXL在昇腾A3芯片上，存在如下约束条件：

Atlas A3 训练/推理系列产品，该场景下采用HCCS传输协议时，不支持Host内存作为远端Cache（开启中转内存池时无此限制）。

所以未给出D2H/H2H场景下，采用HCCS传输协议时的实测性能数据。

单机场景 (CANN 9.0.0）

WRITE:

传输内存块大小	HCCS D2D (GB/s)	HCCS D2D BufferPool(GB/s)	RDMA D2D(GB/s)	RDMA D2D BufferPool(GB/s)
16K	6.916	6.469	7.114	7.036
32K	16.050	12.596	5.700	5.525
64K	28.882	22.781	10.126	9.795
128K	45.637	38.261	16.393	15.966
256K	66.667	58.221	21.548	21.051
512K	81.967	76.876	21.842	21.596
1M	84.175	81.699	21.397	21.237
2M	93.075	91.308	21.533	21.474
4M	110.132	110.424	22.202	22.187
8M	113.020	114.784	22.353	22.202
传输内存块大小	HCCS H2D(GB/s)	HCCS H2D BufferPool(GB/s)	RDMA H2D(GB/s)	RDMA H2D BufferPool(GB/s)
16K	5.277	2.727	7.037	2.659
32K	11.309	5.347	5.683	5.308
64K	20.109	10.654	10.075	8.904
128K	24.601	18.968	16.411	11.379
256K	27.606	24.108	21.360	13.823
512K	29.649	33.665	21.865	14.281
1M	29.869	33.656	21.353	15.038
2M	30.720	33.693	21.411	15.218
4M	32.192	33.414	22.210	15.031
8M	32.316	34.051	22.266	14.471
传输内存块大小	HCCS D2H(GB/s)	HCCS D2H BufferPool(GB/s)	RDMA D2H(GB/s)	RDMA D2H BufferPool(GB/s)
16K	——	3.292	6.714	3.164
32K	——	7.938	5.669	7.608
64K	——	12.303	10.094	12.951
128K	——	23.247	16.359	14.516
256K	——	24.752	21.511	15.214
512K	——	26.508	21.819	15.274
1M	——	26.658	21.230	15.426
2M	——	26.618	21.331	15.576
4M	——	27.257	22.171	15.438
8M	——	26.371	22.278	15.371
传输内存块大小	HCCS H2H(GB/s)	HCCS H2H BufferPool(GB/s)	RDMA H2H(GB/s)	RDMA H2H BufferPool(GB/s)
16K	——	2.526	6.128	2.367
32K	——	5.300	5.702	5.062
64K	——	10.319	10.118	9.386
128K	——	17.478	16.467	14.760
256K	——	24.728	21.515	15.218
512K	——	25.232	21.864	15.383
1M	——	25.821	21.371	15.379
2M	——	26.085	21.541	15.315
4M	——	26.145	22.222	15.375
8M	——	25.636	22.317	15.419

READ:

传输内存块大小	HCCS D2D(GB/s)	HCCS D2D BufferPool(GB/s)	RDMA D2D(GB/s)	RDMA D2D BufferPool(GB/s)
16K	7.075	6.650	6.665	5.768
32K	17.332	13.200	5.609	5.456
64K	30.555	24.262	9.971	9.694
128K	49.554	40.903	15.206	15.932
256K	74.272	63.808	21.338	20.987
512K	94.985	85.092	21.701	21.664
1M	95.129	90.975	21.327	21.251
2M	107.388	103.477	21.364	21.389
4M	131.441	125.881	22.136	22.151
8M	134.553	134.989	22.230	22.159
传输内存块大小	HCCS H2D(GB/s)	HCCS H2D BufferPool(GB/s)	RDMA H2D(GB/s)	RDMA H2D BufferPool(GB/s)
16K	5.234	2.248	6.181	2.339
32K	11.652	4.463	5.620	4.265
64K	19.968	8.499	9.949	7.312
128K	24.314	17.275	16.287	10.318
256K	27.759	21.596	21.183	11.774
512K	30.274	25.293	21.769	14.345
1M	30.718	24.811	21.309	15.400
2M	31.646	26.963	21.400	15.623
4M	33.405	30.765	22.116	15.711
8M	33.693	27.316	22.155	14.760
传输内存块大小	HCCS D2H(GB/s)	HCCS D2H BufferPool(GB/s)	RDMA D2H(GB/s)	RDMA D2H BufferPool(GB/s)
16K	——	2.974	6.616	3.467
32K	——	5.754	5.612	7.962
64K	——	11.578	9.924	14.689
128K	——	23.178	16.202	15.565
256K	——	35.411	21.266	16.079
512K	——	37.742	21.720	16.232
1M	——	39.160	21.324	16.359
2M	——	39.358	21.485	16.398
4M	——	39.670	22.124	16.361
8M	——	37.982	22.120	16.308
传输内存块大小	HCCS H2H(GB/s)	HCCS H2H BufferPool(GB/s)	RDMA H2H(GB/s)	RDMA H2H BufferPool(GB/s)
16K	——	2.933	6.564	2.162
32K	——	6.721	5.596	4.670
64K	——	14.026	9.972	9.658
128K	——	19.480	16.213	15.194
256K	——	21.849	21.389	15.704
512K	——	24.357	21.720	15.901
1M	——	22.789	21.306	16.017
2M	——	23.016	21.926	16.100
4M	——	23.264	22.136	16.119
8M	——	22.678	22.202	16.069

双机场景 (CANN 9.0.0）

WRITE

传输内存块大小	HCCS D2D(GB/s)	HCCS D2D BufferPool(GB/s)	RDMA D2D(GB/s)	RDMA D2D BufferPool(GB/s)
16K	4.033	3.849	5.753	7.181
32K	8.822	8.482	5.689	5.551
64K	16.607	15.753	10.093	9.850
128K	28.848	27.927	16.381	16.156
256K	46.992	45.224	21.507	21.226
512K	64.969	64.868	21.785	21.728
1M	74.850	73.790	21.327	21.277
2M	86.806	85.499	21.397	21.459
4M	106.112	106.112	22.147	22.199
8M	113.020	110.424	22.286	22.305
传输内存块大小	HCCS H2D(GB/s)	HCCS H2D BufferPool(GB/s)	RDMA H2D(GB/s)	RDMA H2D BufferPool(GB/s)
16K	3.406	2.690	6.159	2.648
32K	7.146	5.256	5.685	5.019
64K	13.329	10.409	10.067	7.738
128K	15.060	18.826	16.402	10.194
256K	16.230	23.413	21.400	11.391
512K	16.896	32.647	21.792	12.860
1M	16.980	33.086	21.357	13.319
2M	17.325	33.369	21.533	14.086
4M	17.986	33.875	22.202	13.569
8M	18.095	32.869	22.242	12.974
传输内存块大小	HCCS D2H(GB/s)	HCCS D2H BufferPool(GB/s)	RDMA D2H(GB/s)	RDMA D2H BufferPool(GB/s)
16K	——	3.600	6.018	3.452
32K	——	8.718	5.691	7.630
64K	——	15.863	10.096	13.230
128K	——	23.914	16.463	14.384
256K	——	25.757	21.422	14.795
512K	——	26.338	21.888	14.832
1M	——	27.576	21.404	15.095
2M	——	27.606	21.552	15.026
4M	——	27.821	22.210	15.194
8M	——	27.346	22.317	15.075
传输内存块大小	HCCS H2H(GB/s)	HCCS H2H BufferPool(GB/s)	RDMA H2H(GB/s)	RDMA H2H BufferPool(GB/s)
16K	——	2.412	6.467	2.586
32K	——	4.793	5.703	5.084
64K	——	9.363	10.112	9.694
128K	——	16.491	16.372	14.715
256K	——	25.547	21.470	15.332
512K	——	26.020	21.853	15.478
1M	——	26.327	21.353	15.476
2M	——	26.562	21.478	15.551
4M	——	26.500	22.222	15.584
8M	——	26.355	22.298	15.543

READ

传输内存块大小	HCCS D2D(GB/s)	HCCS D2D BufferPool(GB/s)	RDMA D2D(GB/s)	RDMA D2D BufferPool(GB/s)
16K	4.142	3.939	6.834	6.064
32K	9.176	8.789	5.607	5.548
64K	17.133	16.175	9.947	9.508
128K	29.840	28.875	16.137	15.650
256K	49.741	47.911	21.212	20.750
512K	71.266	70.701	21.563	21.478
1M	83.333	82.399	21.158	21.111
2M	97.504	97.504	21.349	21.298
4M	124,008	123.396	21.941	22.081
8M	133.120	130.480	22.069	22.187
传输内存块大小	HCCS H2D(GB/s)	HCCS H2D BufferPool(GB/s)	RDMA H2D(GB/s)	RDMA H2D BufferPool(GB/s)
16K	3.429	2.863	6.432	2.499
32K	7.306	6.401	5.605	5.237
64K	13.267	11.189	9.903	8.161
128K	15.238	18.851	16.167	10.909
256K	16.682	21.819	21.133	11.925
512K	17.487	21.302	21.668	14.473
1M	17.544	23.773	21.126	15.305
2M	17.847	24.787	21.255	15.645
4M	18.385	24.650	22.073	15.676
8M	18.458	21.701	22.151	14.498
传输内存块大小	HCCS D2H(GB/s)	HCCS D2H BufferPool(GB/s)	RDMA D2H(GB/s)	RDMA D2H BufferPool(GB/s)
16K	——	2.838	6.271	2.724
32K	——	5.844	5.607	5.285
64K	——	10.351	9.944	10.485
128K	——	16.653	16.217	15.235
256K	——	30.332	21.266	16.133
512K	——	37.504	21.720	16.504
1M	——	37.994	21.143	16.473
2M	——	38.121	21.393	16.640
4M	——	38.379	22.038	16.510
8M	——	37.810	22.073	16.554
传输内存块大小	HCCS H2H(GB/s)	HCCS H2H BufferPool(GB/s)	RDMA H2H(GB/s)	RDMA H2H BufferPool(GB/s)
16K	——	2.914	6.234	1.976
32K	——	6.872	5.597	4.138
64K	——	12.333	9.950	8.247
128K	——	20.505	16.183	15.332
256K	——	20.661	21.190	16.028
512K	——	26.261	21.664	16.255
1M	——	21.999	21.204	16.346
2M	——	26.830	21.378	16.482
4M	——	22.559	22.030	16.456
8M	——	21.747	22.191	16.342