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HW 9 Results

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f13-759-cheemalamarr

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Unread post Mon Nov 18, 2013 9:22 pm

Re: HW 9 Results

Problem 1:
Max N reduction: 300000000
Time required to reduce this max N: 729.41 ms
Device used:: Euler02 - GeForce GTX 480

Problem 2:
Max N scan: 300000000
Time required to reduce this max N: 748.422 ms
Device used:: Euler01 - GeForce GTX 480


Regards,
Sai
Attachments
Plot-ExclusiveScan.png
Plot-ExclusiveScan.png (69.87 KiB) Viewed 5833 times
Plot-ArrayReduction.png
Plot-ArrayReduction.png (38.46 KiB) Viewed 5833 times
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f13-759-lzheng23

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Unread post Mon Nov 18, 2013 9:56 pm

Re: HW 9 Results

from Lixing
Attachments
2.png
2.png (13.13 KiB) Viewed 5832 times
1.png
1.png (14.97 KiB) Viewed 5832 times
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f13-759-mraghavan3

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Unread post Mon Nov 18, 2013 10:14 pm

Re: HW 9 Results

Problem 1:
Maximum N = 193000000
Time using thrust = 851.183167 ms

Problem 2:
Maximum N = 382000000
Time using thrust = 1164.043945 ms
Attachments
scan.png
scan.png (9.71 KiB) Viewed 5831 times
red.png
red.png (15 KiB) Viewed 5831 times
- Manoj
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f13-759-avalliappan

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Unread post Mon Nov 18, 2013 10:33 pm

Re: HW 9 Results

Problem:1
Max N Reduction: 381000000
Time required to reduce Max N: 1042.8397 ms

Problem:2
Max N Reduction: 381999999
Time required to reduce Max N: 1200.1225 ms
Attachments
scan.png
scan.png (28.37 KiB) Viewed 5831 times
vec_red.png
vec_red.png (36.01 KiB) Viewed 5831 times
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f13-759-nravichandr2

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Unread post Mon Nov 18, 2013 11:10 pm

Re: HW 9 Results

Problem 1:
Max N Reduction: 387000000
Time required to reduce Max N: 570.746277 ms

Problem 2:
Max N Scan: 387000000
Time required to scan Max N: 948.653992
Attachments
2.png
2.png (17.34 KiB) Viewed 5831 times
1.png
1.png (16.81 KiB) Viewed 5831 times
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f13-759-asinha7

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Unread post Mon Nov 18, 2013 11:20 pm

Re: HW 9 Results

Problem 1:
Max N Reduction: 193115200
Time required to reduce Max N: 350.779 ms

Data element: double

Program output:
  Code:
[asinha7@euler09 src_hw09]$ ./reduce 1 5
Running on: GeForce GTX 480
Number of elements: 193115200
CPU Time: 255.148 ms
GPU Time: 270.445 ms
Test PASSED
device: 24348.436836  host: 24348.436836
Thrust elapsed time: 350.779 ms
Thrust Test PASSED
device: 24348.436836  host: 24348.436836


Scaling Analysis:
reduce_scaling.png
reduce_scaling.png (43.39 KiB) Viewed 5831 times


Program 2:
Max N prescan: 16777216
Time Taken to scan Max N: 36.1751 ms

Data element: float

Program output:
  Code:
[asinha7@euler01 src_hw09]$ ./scan 16777216
Number of elements: 16777216
Running on: GeForce GTX 480
Warning: exceeding single-precision accuracy.  Scan will be inaccurate.
CPU Time: 310.3 ms
GPU Time: 30.0798 ms
Test Passed
Thrust Time: 36.1751 ms
Test Passed


Scaling Analysis:
prescan_scaling.png
prescan_scaling.png (39.52 KiB) Viewed 5831 times


Regards
Arindam
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f13-759-nsubramania2

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Unread post Mon Nov 18, 2013 11:51 pm

Re: HW 9 Results

Sum.png
Sum.png (50.92 KiB) Viewed 5831 times


Scan.png
Scan.png (49.11 KiB) Viewed 5831 times


Max. value : 186105856
- Naveen
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f13-759-skumaraswamy

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Unread post Tue Nov 19, 2013 12:11 am

Re: HW 9 Results

Problem1:
Max N reduction: 67108864
Includsive time required to reduce: 192.267 ms

Problem2:
Max N reduction: 67108864
Inclusive time required to reduce: 321.18 ms
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f13-759-kpalaniswamy

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Unread post Tue Nov 19, 2013 12:37 am

Re: HW 9 Results

P1.png
P1.png (9.27 KiB) Viewed 5808 times
P2.png
P2.png (9.05 KiB) Viewed 5808 times
Parallel reduction:
Max N: 385,000,000
Time taken for reduction: 410.550232 ms

Exclusive scan:
Max N:193,000,000
Time taken for exclusive scan: 643.07830 ms

-Kumaraguru
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f13-759-cpatil

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Unread post Tue Nov 19, 2013 12:44 am

Re: HW 9 Results

Problem 1
Maximum reduction N = 134217728
Time required to reduce Max N:455.979ms

reduction.png
reduction.png (35.93 KiB) Viewed 5808 times


Problem 2
Maximum scan N = 134217728
Time required to reduce Max N:455.979ms

scan.png
scan.png (19.55 KiB) Viewed 5808 times
Regards,
Chetan Patil
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f13-759-cpatil

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Unread post Tue Nov 19, 2013 12:45 am

Re: HW 9 Results

Above results obtained by running on GTX 480
Regards,
Chetan Patil
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f13-759-sanka

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Unread post Tue Nov 19, 2013 1:02 am

Re: HW 9 Results

ass9_2.jpg
ass9_2.jpg (39.27 KiB) Viewed 5808 times
ass9_1.jpg
ass9_1.jpg (38.77 KiB) Viewed 5808 times



Max N for scan is 70000000 time taken 188.93

Max N for reduce is 67108864 time taken 134.191

saketh
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f13-759-sganta

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Unread post Tue Nov 19, 2013 1:05 am

Re: HW 9 Results

Problem 1:
Max N Reduction: 387370466
Time required to reduce Max N: 1892.66 ms

Problem 2:
Max N Scan: 34000000
Time required to Scan Max N: 33.66 ms
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f13-759-fliu37

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Unread post Wed Nov 20, 2013 11:20 pm

Re: HW 9 Results

Problem 1:
Max N Reduction: 2^24
Time required to reduce Max N: CPU 88.198593 ms, CUDA 31.745152 ms, Thrust 62.568928 ms

Problem 2:
Max N Reduction: 2^27
Time required to reduce Max N: CUDA 432.136383 ms, Thrust 1294.907104 ms
Attachments
Scaling.png
Q2 Scaling Analysis
Scaling.png (9.95 KiB) Viewed 5786 times
Scaling.png
Q1 Scaling Analysis
Scaling.png (22.04 KiB) Viewed 5786 times
-Fang
CUDA is cool if you know how to use it.
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