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PROGRAM:

NAME

aimk - Portable make wrapper script

SYNOPSIS

aimk [ -here ] [ make arguments ]

DESCRIPTION

aimk is a wrapper program for make, used to portably select options to build PVM and PVM
applications on various machines. Each port of PVM is assigned an architecture name. The
name is used both during compilation (to conditionally switch in code) and at runtime (to
select an executable or host).

aimk uses the value of environment variable $PVM_ARCH if it is set, otherwise it calls
$PVM_ROOT/pvmgetarch to determine the architecture name. pvmgetarch is a script that
sniffs at various parts of the system to determine the correct architecture name. It is
updated as new PVM ports are defined, and can be augmented locally.

aimk determines the machine architecture and execs make, passing it the architecture and a
configuration file along with arguments supplied to aimk. It runs make in a subdirectory
to prevent executables from becoming intermixed and to permit overlapping compiles. A
different makefile can be placed in each subdirectory or a single makefile, Makefile.aimk,
can be shared between architectures. Per-architecture definitions from the $PVM_ROOT/conf
directory are appended to the common makefile. aimk calls make is called in one of three
ways, depending on what makefiles are present:

i. If $PVM_ARCH/Makefile or $PVM_ARCH/makefile exists, change directory to $PVM_ARCH
and exec make there:

(cd $PVM_ARCH ; make PVM_ARCH=$PVM_ARCH < aimk args >)

ii. Else if Makefile.aimk exists, create $PVM_ARCH directory if it doesn't exist, then:

(cd $PVM_ARCH ;
make -f $PVM_ROOT/conf/$PVM_ARCH.def
-f ../Makefile.aimk PVM_ARCH=$PVM_ARCH < aimk args >)

iii. Else just exec make in current directory:

make PVM_ARCH=$PVM_ARCH < aimk args >

If aimk succeeds in calling make, the exit status is that of make, otherwise it is 1.

FLAGS

-here Forces aimk to run make in the current directory, e.g. converts case i. to case
iii.

EXAMPLES

The following Makefile.aimk file builds and installs hello, creating the PVM binary
directory if it doesn't exist. It can be run concurrently on machines of different types,
sharing the same source directory.

LDIR = -L$(PVM_ROOT)/lib/$(PVM_ARCH)
PVMLIB = -lpvm3
SDIR = ..
BDIR = $(HOME)/pvm3/bin
XDIR = $(BDIR)/$(PVM_ARCH)
CFLAGS = -g -I$(PVM_ROOT)/include
LIBS = $(LDIR) $(PVMLIB) $(ARCHLIB)

$(XDIR):
- mkdir $(BDIR) $(XDIR)

hello: $(SDIR)/hello.c $(XDIR)
$(CC) $(CFLAGS) -o $@ $(SDIR)/$@.c $(LIBS)
mv $@ $(XDIR)

ENVIRONMENT

$PVM_ROOT Root path of PVM installation.
$PVM_ARCH PVM architecture name for machine.

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