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Re: Random convolution ? [message #40083 is a reply to message #40081]

Thu, 08 July 2004 23:03

Emmanuel Christophe is currently offline

Emmanuel Christophe
Messages: 11
Registered: March 2004

Junior Member

Hi

Here are the information about the system where convol bug:

IDL> print, !version
{ sparc sunos unix Solaris 6.0.3 Feb 26 2004 32 64}
IDL> help, !cpu, /struct
** Structure !CPU, 6 tags, length=24, data length=24:
HW_VECTOR LONG 0
VECTOR_ENABLE LONG 0
HW_NCPU LONG 3
TPOOL_NTHREADS LONG 3
TPOOL_MIN_ELTS LONG 100000
TPOOL_MAX_ELTS LONG 0
IDL>

On another system, same version, same operating system, but more memory
and only 2 CPUs, everything seems to be fine.

Chris Torrence wrote:
> Hi Emmanuel and Bob,
>
> Can you tell me your IDL version and platform? And also whether you have
> multiple CPUs on your machine? The following IDL commands should give this
> information:
>
> IDL> print,!version
> { x86 Win32 Windows Microsoft Windows 6.0 Jun 27 2003 32 64}
>
> IDL> help, !cpu, /struct
> ** Structure !CPU, 6 tags, length=24, data length=24:
> HW_VECTOR LONG 0
> VECTOR_ENABLE LONG 0
> HW_NCPU LONG 2
> TPOOL_NTHREADS LONG 2
> TPOOL_MIN_ELTS LONG 100000
> TPOOL_MAX_ELTS LONG 0
>
> I can't seem to reproduce your bug on my machine using IDL6.0. Do you have
> any other cases that fail?
>
> However, there was a known bug with CONVOL in IDL5.6 and IDL6.0, where it
> could produce incorrect results using multiple threads. This has been fixed
> for IDL6.1.
>
> -Chris Torrence
> Research Systems, Inc.
>
>

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[Message index]

		Re: Random convolution ? By: R.G. Stockwell on Fri, 09 July 2004 08:25
		Re: Random convolution ? By: Emmanuel Christophe on Thu, 08 July 2004 23:03
		Re: Random convolution ? By: Chris[2] on Thu, 08 July 2004 15:30
		Re: Random convolution ? By: K. Bowman on Thu, 08 July 2004 13:28
		Re: Random convolution ? By: R.G. Stockwell on Thu, 08 July 2004 10:21
		Re: Random convolution ? By: David Fanning on Thu, 08 July 2004 08:20
		Re: Random convolution ? By: Emmanuel Christophe on Thu, 08 July 2004 07:50
		Re: Random convolution ? By: David Fanning on Thu, 08 July 2004 07:30

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