[QUOTE=Prime95;531193]Was it running previously and you upgraded the OS? Or is this a fresh install on 10.15?

If a fresh install can you try moving the hwloc dynamic link library to /usr/local/lib[/QUOTE]

First time user and I just followed the install instructions as listed. When launched, I got a dialog box that said it could not open the program. Nothing I have tried has seemed to affect the ability to get the program to run.

I have no idea / knowledge on what you mean by moving a dynamic link.

Mac OS 10.15.1 on a 2017 iMac Retina

[QUOTE=Jet1945;531289]First time user and I just followed the install instructions as listed. When launched, I got a dialog box that said it could not open the program. Nothing I have tried has seemed to affect the ability to get the program to run.

I have no idea / knowledge on what you mean by moving a dynamic link.

Mac OS 10.15.1 on a 2017 iMac Retina[/QUOTE]

Does the program have execution permissions? Some systems unzip executables to be non-executable. Look into the permissions of the program.

On linux based systems you can do [c]chmod u+x mprime[/c] when in in mprime's directory.

[QUOTE=paulunderwood;531290]Does the program have execution permissions? Some systems unzip executables to be non-executable. Look into the permissions of the program.[/QUOTE]

I understand the question but as a Mac user, I have no knowledge of where or how to affect the permissions of a program. That is not something I have ever done in 10 years on a Mac.

[QUOTE=paulunderwood;531290]On linux based systems you can do chmod u+x mprime when in in mprime's directory.[/QUOTE]

I know the the Mac OS has at the kernel level a passing acquaintance with Linux and that the command you mentioned can be used with the Terminal program. However, that is a detailed level of familiarity that I do not have with the Mac. For me the mprime's directory would be the folder labeled p95v298b6-2 which is where the program Prime95 and the accompanying text files reside.

[QUOTE=Jet1945;531291]I understand the question but as a Mac user, I have no knowledge of where or how to affect the permissions of a program. That is not something I have ever done in 10 years on a Mac.[/QUOTE]

See the edit to my previous post.

Please see the section on [c]chmod[/c] [URL="http://www.macinstruct.com/node/415"]here[/URL]. You must be in the right directory to use it properly!

[c]chmod[/c] is Unix speak for change mode. When in mprime's directory you can run [c]chmod 755 mprime[/c]. There is a explanation on what "755" means in the link. Afterwards run [c]ls -l[/c] -- Unix speak for list file in long format -- and you should see rwxrw-rw- where r=read, w=write and x=execute -- the groupings are you, your gtoup and everyone. So only you can execute the program. If you are paranoid about things you can use "744" or even "700"

[QUOTE=Jet1945;531291]I understand the question but as a Mac user, I have no knowledge of where or how to affect the permissions of a program. That is not something I have ever done in 10 years on a Mac.[/QUOTE]

Please try [url]http://mersenne.org/ftp_root/gimps/p95v298b4.MacOSX.zip[/url]
This zip file has the libgmp dynamic link library located in a different place in the heirarchy - I'm curious if that makes a difference.

BTW, sorry for the troubles and thanks for helping me figure this out.

[QUOTE=paulunderwood;531293]See the edit to my previous post.

Please see the section on [c]chmod[/c] [URL="http://www.macinstruct.com/node/415"]here[/URL][/QUOTE]

I did respond to your edit. I also checked the Get Info on the program and I (as user) have all the permissions to read and write for the program.

The balance with chmod is a level that I am not comfortable doing. Without being snarky at all, if the is the level of difficulty necessary to get a program to run on a Mac - it probably isn't something that I ought to be doing.

Thanks for your help.

[QUOTE=paulunderwood;531293]Please try [url]http://mersenne.org/ftp_root/gimps/p95v298b4.MacOSX.zip[/url]
This zip file has the libgmp dynamic link library located in a different place in the heirarchy - I'm curious if that makes a difference.[/QUOTE]

I dl'd the file and saw the library file included in the package. I installed the lib file (double clicking) and the launched the Prime95 and got the same dialog box "The application Prime95 could not be opened." Not sure what to try next.

[QUOTE=Jet1945;531295]I did respond to your edit. I also checked the Get Info on the program and I (as user) have all the permissions to read and write for the program.

The balance with chmod is a level that I am not comfortable doing. Without being snarky at all, if the is the level of difficulty necessary to get a program to run on a Mac - it probably isn't something that I ought to be doing.

Thanks for your help.[/QUOTE]

I have never used a Mac. Do they still have only one mouse button? :wink:

[QUOTE=paulunderwood;531296]I have never used a Mac. Do they still have only one mouse button? :wink:[/QUOTE]

Naaah!! We have gone to the 21st century - its a Magic Mouse - press on the left side for the normal stuff and the right side for the old CTL-click things you used to have to do.

Modern technology is amazing .... sorta .... when it works .... not like now

@George, FWIW, when I unzipped the Mac version here on Debian, Prime95 does not have execution permission.

[QUOTE=Jet1945;531295]
I dl'd the file and saw the library file included in the package. I installed the lib file (double clicking) and the launched the Prime95 and got the same dialog box "The application Prime95 could not be opened." Not sure what to try next.[/QUOTE]

I'll be away for 2 days. When I get back, I'll borrow my wife's Mac and see if I can install prime95.

[QUOTE=Prime95;531302]I'll be away for 2 days. When I get back, I'll borrow my wife's Mac and see if I can install prime95.[/QUOTE]Time for Ben to find his first prime.