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CUDA-x86.

how to optimize parallel computation using cuda fortran
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Dolf



Joined: 22 Mar 2012
Posts: 100

PostPosted: Mon May 07, 2012 10:13 am    Post subject: Reply with quote

[quote="mkcolg"]
Quote:
how can I run the accelinfo?? do I run a special command in cmd??
You can run "pgaccellinfo" from a command line shell. Are you using PVF? If so, then open a PGI DOS command shell from the "Start" menu.

I am using PGI Visual Fortran 12.1, running it on Windows 7.
here is what I get from running pgaccelinfo:

PGI Visual Fortran 2010
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\tholfaqar>pgaccelinfo
CUDA Driver Version: 4010

Device Number: 0
Device Name: GeForce GTX 460 v2
Device Revision Number: 2.1
Global Memory Size: 1073741824
Number of Multiprocessors: 7
Number of Cores: 224
Concurrent Copy and Execution: Yes
Total Constant Memory: 65536
Total Shared Memory per Block: 49152
Registers per Block: 32768
Warp Size: 32
Maximum Threads per Block: 1024
Maximum Block Dimensions: 1024, 1024, 64
Maximum Grid Dimensions: 65535 x 65535 x 65535
Maximum Memory Pitch: 2147483647B
Texture Alignment: 512B
Clock Rate: 1647 MHz
Execution Timeout: Yes
Integrated Device: No
Can Map Host Memory: Yes
Compute Mode: default
Concurrent Kernels: Yes
ECC Enabled: No
Memory Clock Rate: 2004 MHz
Memory Bus Width: 192 bits
L2 Cache Size: 393216 bytes
Max Threads Per SMP: 1536
Async Engines: 1
Unified Addressing: No
Current free memory: 810622976
Upload time (4MB): 980 microseconds ( 0 ms pinned)
Download time: 1000 microseconds ( 0 ms pinned)
Upload bandwidth: 4279 MB/sec (6168 MB/sec pinned)
Download bandwidth: 4194 MB/sec (6260 MB/sec pinned)

C:\Users\tholfaqar>

what do you think?? do u see any mis-configured part in the data shown?

I am reading the link you sent me (monte carlo example), I will let you know if I have any questions.

thanks for the valuable notes.
Dolf
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