Hi Sergiy,
Thank you so much for your detailed reply.
I am considering buying a couple of PCs to replace older PCs within
my
department, and I was wondering what I needed to get. Originally I
was pulling my hair out because my university used to charge a £700
per PC on top of hardware and software for looking after a 64 bit
machine. As we are looking to replace about 6 to 8 PCs it's going to
cost us a considerate amount of money! I have asked the IT dept
again
about this charge since I wrote the email to Statalist and they said
they have now waived this charge (YAY!!!)
So it looks like the problems are resolving on their own - and
hopefully it will go on that direction.
I have only recently used Windows Vista and I haven't yet tried to
push the Stata memory limit on that platform, so it's good to know
what you have told me. My university does not support Windows Vista
and we are still using XP - I am guessing that they may skip the
Vista
and directly upgrade from XP to Windows 7. I have a Vista machine at
home, so I will try what you've said in your email.
Warm regards,
Ada
On Thu, Aug 20, 2009 at 7:00 PM, Sergiy Radyakin<[email protected]
> wrote:
> Dear Ada,
>
> any computers you might be buying now are definitely not 32-bit.
They
> are almost surely 64-bit.
> So installing a 32-bit OS is underusing the available resources.
> 32-bit versions of the modern Windows are designed primarily for
> compatibility reasons.
> And you will almost surely upgrade your software in the future.
>
> 1. Do you have any specific software that will not run in the 64-
bit
> environment? 32-bit programs work in 64-bit XP and Vista, should be
> same with Windows 7. This is not true for the 16-bit programs (Win
> 3.11 and earlier) - they do not run in Windows 64-bit, but work in
> 32-bit.
>
> 2. Is this the IT policy of your organization to use 32-bit OS? In
> this case you may try to pursue the "special needs" route and try
to
> negotiate an exception.
>
> 3. If your data sets grow, how fast? How do you process them? Do
you
> plan to expand the memory in the future? 32-bit OS will underuse it
> (anything after 4gb will not be used).
>
> 4. Consult the manufacturer/MSFT regarding upgrade of 32-bit OS to
> 64-bit OS. It could very well be free.
>
> 5. Windows 7 comes with a Virtual XP mode: "Windows XP Mode
requires
> an additional 1 GB of RAM, an additional 15 GB of available hard
disk
> space, and a processor capable of hardware virtualization with
Intel
> VT or AMD-V turned on" so you will not be worse off than you have
seen
> with XP already. Vista often provides more memory to Stata 10 32-
bit
> (about 1500mb for me) than XP did (about 1000m for me).
>
> Best regards, Sergiy Radyakin
>
> On Wed, Aug 19, 2009 at 1:32 PM, Jeph Herrin<[email protected]>
wrote:
>> I've had 64bit XP on a 64bit PC for a couple of years,
>> works like a charm. Stata allocates 15gb, no problem.
>>
>> hope this helps,
>> Jeph
>>
>>
>> Ada Ma wrote:
>>>
>>> Hi Statalisters,
>>>
>>> I am wondering how much memory I will be able to call upon within
>>> STATA 11, given that I will be using a Windows 7 32-bit PC.
>>>
>>> My experience with Windows XP (32bit) is that the maximum
amount of
>>> memory I can call for within STATA (v 10) is 1100m, sometimes
1300m,
>>> but never anything approaching 2GB. I have never used STATA 11.
>>>
>>> I am considering whether it is worthwhile to buy a bunch of new
32bit
>>> PCs with 3GB of memory that will be used for the next four years.
>>> With the data sets we use growing bigger every day I think, for
our
>>> purposes, we should buy new PCs should at least allow us to set
memory
>>> to 2GB. The Windows OS is the only option we may take, so we
won't be
>>> able to adopt solutions that involve the use of alternative OSs.
>>>
>>> I would greatly appreciate any experience you have with STATA 11
>>> and/or Windows 7 32-bit you would care to share!
>>>
>>> Thank you.
>>>
>>> Regards,
>>> Ada
>>>
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
--
Ada Ma
Research Fellow
Health Economics Research Unit
University of Aberdeen, UK.
http://www.abdn.ac.uk/heru/
Tel: +44 (0) 1224 555189
Fax: +44 (0) 1224 550926
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
