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gcc single threaded?
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Adam
*nix forums Guru Wannabe


Joined: 22 Feb 2005
Posts: 251

PostPosted: Mon Jul 10, 2006 6:34 pm    Post subject: Re: gcc single threaded? Reply with quote
In article <44a97267$0$13988$edfadb0f@dread15.news.tele.dk>,
Henrik Goldman <henrik_goldman@mail.tele.dk> wrote:
Quote:
When installing the gcc 4.1.1 package made available by HP it is configured
as "thread model: single". Can anyone tell me what that means in detail? How
does that affect multithreaded code or is this only a restriction on how gcc
works (the compiler itself)?

Thanks in advance.

-- Henrik

The thread model doesn't do much, if anything, to the compiler itself.
It may affect the C++ standard library in that the library will not use
any synchronization to keep classes defined there thread safe. You can
still use the '-pthread' option with GCC to automatically define
-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L on compilations
(on HP-UX 11.* OS releases) and to link in the system pthread library.

The defines that get set on other older HP-UX OS's may be different.

Steve Ellcey
sje <AT> cup . hp . com
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Henrik Goldman
*nix forums Guru Wannabe


Joined: 26 Mar 2006
Posts: 102

PostPosted: Mon Jul 03, 2006 7:39 pm    Post subject: gcc single threaded? Reply with quote
When installing the gcc 4.1.1 package made available by HP it is configured
as "thread model: single". Can anyone tell me what that means in detail? How
does that affect multithreaded code or is this only a restriction on how gcc
works (the compiler itself)?

Thanks in advance.

-- Henrik
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