Memory bandwidth for CUDA
# ./deviceQuery There is 1 device supporting CUDA Device 0: "GeForce GTX 260" Major revision number: 1 Minor revision number: 3 Total amount of global memory: 939196416 bytes Number of multiprocessors: 24 Number of cores: 192 Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 16384 bytes Total number of registers available per block: 16384 Warp size: 32 Maximum number of threads per block: 512 Maximum sizes of each dimension of a block: 512 x 512 x 64 Maximum sizes of each dimension of a grid: 65535 x 65535 x 1 Maximum memory pitch: 262144 bytes Texture alignment: 256 bytes Clock rate: 1.30 GHz Concurrent copy and execution: Yes Test PASSED
#
# ./bandwidthTest --memory=pinned --mode=shmoo
Running on......
device 0:GeForce GTX 260
Shmoo Mode
Host to Device Bandwidth for Pinned memory
.................................................................................
Transfer Size (Bytes) Bandwidth(MB/s)
1024 93.9
2048 195.3
3072 290.1
4096 398.6
5120 488.3
6144 580.1
7168 651.0
8192 744.0
9216 806.3
10240 879.8
11264 950.6
12288 1019.0
13312 1085.1
14336 1158.6
15360 1190.9
16384 1250.0
17408 1328.1
18432 1384.1
19456 1427.3
20480 1479.6
22528 1568.2
24576 1674.1
26624 1775.6
28672 1822.9
30720 1927.4
32768 2003.2
34816 2075.2
36864 2143.7
38912 2050.2
40960 2245.0
43008 2304.2
45056 2360.9
47104 2415.2
49152 2454.2
51200 2516.9
61440 2738.0
71680 2908.9
81920 3063.7
92160 3161.5
102400 3255.2
204800 3837.2
307200 3986.0
409600 4138.0
512000 4231.2
614400 4286.3
716800 4343.0
819200 4386.6
921600 4392.3
1024000 4418.8
1126400 4442.6
2174976 4540.8
3223552 4577.5
4272128 4592.2
5320704 4582.9
6369280 4611.5
7417856 4616.4
8466432 4618.1
9515008 4619.6
10563584 4626.3
11612160 4628.5
12660736 4629.2
13709312 4632.3
14757888 4632.3
15806464 4632.4
16855040 4634.3
18952192 4636.7
21049344 4637.4
23146496 4637.8
25243648 4637.9
27340800 4639.9
29437952 4640.8
31535104 4641.4
33632256 4642.2
37826560 4643.3
42020864 4636.3
46215168 4644.4
50409472 4644.9
54603776 4645.1
58798080 4641.9
62992384 4642.6
67186688 4645.6
Shmoo Mode
Device to Host Bandwidth for Pinned memory
.................................................................................
Transfer Size (Bytes) Bandwidth(MB/s)
1024 97.7
2048 221.9
3072 325.5
4096 420.0
5120 519.4
6144 610.4
7168 697.5
8192 781.2
9216 861.7
10240 930.1
11264 1003.9
12288 1075.1
13312 1154.1
14336 1209.9
15360 1273.8
16384 1335.5
17408 1395.1
18432 1429.1
19456 1508.5
20480 1550.1
22528 1665.5
24576 1749.1
26624 1839.9
28672 1912.2
30720 1953.1
32768 2069.5
34816 2142.1
36864 2211.1
38912 2262.8
40960 2325.1
43008 2384.6
45056 2441.4
47104 2481.9
49152 2547.6
51200 2583.5
61440 2790.2
71680 2959.3
81920 3100.2
92160 3219.4
102400 3321.6
204800 3883.0
307200 4029.8
409600 4182.3
512000 4264.5
614400 4317.9
716800 4368.0
819200 4396.5
921600 4427.7
1024000 4449.0
1126400 4468.5
2174976 4553.7
3223552 4580.9
4272128 4596.4
5320704 4606.6
6369280 4613.6
7417856 4618.5
8466432 4622.0
9515008 4625.0
10563584 4627.6
11612160 4629.3
12660736 4630.6
13709312 4632.6
14757888 4630.1
15806464 4634.7
16855040 4635.0
18952192 4637.3
21049344 4637.5
23146496 4639.2
25243648 4639.7
27340800 4638.6
29437952 4590.1
31535104 4637.1
33632256 4639.3
37826560 4642.9
42020864 4643.6
46215168 4644.3
50409472 4644.5
54603776 4643.9
58798080 4639.6
62992384 4645.6
67186688 4645.6
Shmoo Mode
Device to Device Bandwidth
.................................................................................
Transfer Size (Bytes) Bandwidth(MB/s)
1024 275.1
2048 751.2
3072 1126.8
4096 1446.8
5120 1808.4
6144 2130.7
7168 2485.8
8192 2790.2
9216 2929.7
10240 3310.4
11264 3580.7
12288 3906.2
13312 4231.8
14336 4557.3
15360 4882.8
16384 5208.3
17408 5188.0
18432 5493.2
19456 5709.1
20480 5918.6
22528 6510.4
24576 6996.3
26624 7254.5
28672 7812.5
30720 8138.0
32768 8680.6
34816 8854.2
36864 9014.4
38912 9515.2
40960 9889.2
43008 10003.8
45056 10609.6
47104 10569.9
49152 11160.7
51200 11224.9
61440 12335.5
71680 20105.7
81920 22007.0
92160 24079.6
102400 24723.1
204800 37924.8
307200 48828.1
409600 55407.8
512000 61035.2
614400 65835.7
716800 67349.1
819200 71347.0
921600 73857.7
1024000 75702.5
1126400 76185.7
2174976 86787.4
3223552 90021.0
4272128 93660.2
5320704 94316.3
6369280 96646.3
7417856 95986.7
8466432 93940.9
9515008 97415.1
10563584 96820.9
11612160 98877.0
12660736 98244.3
13709312 99727.1
14757888 98386.7
15806464 95861.5
16855040 98918.3
18952192 100051.0
21049344 100421.3
23146496 96394.0
25243648 98705.3
27340800 99767.4
29437952 99413.0
31535104 99781.8
33632256 100704.0
37826560 97208.9
42020864 100160.5
46215168 100134.5
50409472 101208.9
54603776 99482.7
58798080 100087.9
62992384 101211.7
67186688 97495.8
&&&& Test PASSED
Press ENTER to exit...
#
#
# ./bandwidthTest --mode=shmoo
Running on......
device 0:GeForce GTX 260
Shmoo Mode
Host to Device Bandwidth for Pageable memory
.................................................................................
Transfer Size (Bytes) Bandwidth(MB/s)
1024 120.6
2048 165.5
3072 284.4
4096 368.5
5120 436.0
6144 496.6
7168 542.5
8192 596.4
9216 532.7
10240 581.3
11264 620.9
12288 665.8
13312 709.2
14336 743.0
15360 728.8
16384 822.4
17408 728.1
18432 732.4
19456 803.2
20480 831.1
22528 884.1
24576 933.8
26624 854.9
28672 923.8
30720 948.1
32768 916.4
34816 946.0
36864 1013.1
38912 1030.8
40960 1079.1
43008 1017.8
45056 1058.3
47104 1082.5
49152 1108.2
51200 1059.2
61440 1109.7
71680 1639.3
81920 1658.7
92160 1443.2
102400 1713.3
204800 1898.1
307200 1958.3
409600 1987.9
512000 1821.3
614400 2019.8
716800 1952.6
819200 1870.4
921600 2016.8
1024000 1978.0
1126400 1954.5
2174976 2053.9
3223552 1938.8
4272128 1850.9
5320704 1843.3
6369280 1842.3
7417856 1831.3
8466432 1823.4
9515008 1827.5
10563584 1833.9
11612160 1823.9
12660736 1817.0
13709312 1821.0
14757888 1819.5
15806464 1820.4
16855040 1842.6
18952192 1812.8
21049344 1828.9
23146496 1810.9
25243648 1817.3
27340800 1809.5
29437952 1809.1
31535104 1813.0
33632256 1813.2
37826560 1817.6
42020864 1818.7
46215168 1818.7
50409472 1820.6
54603776 1822.6
58798080 1819.8
62992384 1821.1
67186688 1821.3
Shmoo Mode
Device to Host Bandwidth for Pageable memory
.................................................................................
Transfer Size (Bytes) Bandwidth(MB/s)
1024 98.6
2048 191.5
3072 271.3
4096 342.7
5120 406.9
6144 465.0
7168 510.1
8192 558.0
9216 589.9
10240 626.0
11264 663.1
12288 693.4
13312 725.4
14336 755.4
15360 743.6
16384 801.3
17408 817.8
18432 833.1
19456 859.0
20480 871.9
22528 906.5
24576 948.9
26624 980.3
28672 997.9
30720 1024.4
32768 1028.0
34816 1054.1
36864 1071.8
38912 1091.5
40960 1116.1
43008 1126.8
45056 1130.8
47104 1146.0
49152 1160.3
51200 1159.8
61440 1246.7
71680 1356.3
81920 1387.7
92160 1401.8
102400 1425.6
204800 1451.1
307200 1506.3
409600 1533.7
512000 1518.3
614400 1523.5
716800 1524.9
819200 1542.1
921600 1536.8
1024000 1545.2
1126400 1549.0
2174976 1688.7
3223552 1745.4
4272128 1783.5
5320704 1810.0
6369280 1826.1
7417856 1831.2
8466432 1841.8
9515008 1850.9
10563584 1861.4
11612160 1866.1
12660736 1868.8
13709312 1869.8
14757888 1874.0
15806464 1872.4
16855040 1877.4
18952192 1826.0
21049344 1836.9
23146496 1531.9
25243648 1857.9
27340800 1856.5
29437952 1859.2
31535104 1683.7
33632256 1676.4
37826560 1687.1
42020864 1684.2
46215168 1691.9
50409472 1693.4
54603776 1680.5
58798080 1684.1
62992384 1673.3
67186688 1690.7
Shmoo Mode
Device to Device Bandwidth
.................................................................................
Transfer Size (Bytes) Bandwidth(MB/s)
1024 275.1
2048 751.2
3072 1085.1
4096 1446.8
5120 1775.6
6144 2130.7
7168 2485.8
8192 2741.2
9216 2979.3
10240 3255.2
11264 3580.7
12288 3842.2
13312 4231.8
14336 4482.6
15360 4802.8
16384 5123.0
17408 5108.2
18432 5493.2
19456 5622.6
20480 5918.6
22528 6318.9
24576 6893.4
26624 7053.0
28672 7595.5
30720 7918.1
32768 8561.6
34816 8513.6
36864 8789.1
38912 9277.3
40960 9645.1
43008 9765.6
45056 12103.9
47104 10326.9
49152 10901.2
51200 10972.6
61440 11957.9
71680 19814.3
81920 22007.0
92160 23437.5
102400 24112.7
204800 37924.8
307200 48027.7
409600 55407.8
512000 60281.6
614400 65467.9
716800 66368.3
819200 71674.3
921600 73857.7
1024000 75702.5
1126400 75383.8
2174976 86606.2
3223552 89889.4
4272128 93660.2
5320704 94141.4
6369280 96569.5
7417856 95597.5
8466432 94105.1
9515008 97362.9
10563584 96681.6
11612160 98788.7
12660736 98204.3
13709312 99689.1
14757888 98490.0
15806464 95953.0
16855040 98979.2
18952192 100078.7
21049344 100446.4
23146496 96478.2
25243648 98624.4
27340800 99691.1
29437952 99448.2
31535104 99682.5
33632256 100688.2
37826560 97091.1
42020864 100173.0
46215168 100111.8
50409472 101230.2
54603776 99444.7
58798080 100052.1
62992384 101160.6
67186688 97473.5
&&&& Test PASSED
Press ENTER to exit...
