Parallel make

[Simon Peyton-Jones]

I don't think we have every tried parallel make; I think it most
unlikely that we've turned it off.  Could it be to do with recursive
invocations of make not getting the flag?  Try your make -j2 in
ghc/compiler (which eats most time and doesn't recursively invoke
make)

S

| -----Original Message-----
| From: Alastair Reid [mailto:reid at cs.utah.edu]
| Sent: 18 April 2001 20:14
| To: glasgow-haskell-bugs at haskell.org
| Subject: Parallel make
| 
| 
| 
| Since I have 2 processors and plently of memory, I thought I'd try
| doing a parallel make of GHC:
| 
|   make all -j 2
| 
| This kind of command normally works great for other code (e.g., things
| written in C and for which I have/can get accurate dependency
| information) but I'm getting no parallelism when building GHC.
| 
| Have you explicitly turned parallel make off (e.g., because 
| dependencies aren't sufficiently accurate)?
| 
| Is there any point in pursuing this?
| 
| 
| -- 
| Alastair Reid        reid at cs.utah.edu        
| http://www.cs.utah.edu/~reid/
| 
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