aimk - Portable make wrapper script
aimk [ -here ] [ make arguments ]
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:
- 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 >)
- 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=$PVM_ARCH < aimk args >)
- Else just exec make in current directory:
make PVM_ARCH=$PVM_ARCH < aimk args >
If aimk succeeds in calling make, the exit status is that of make, otherwise it
- Forces aimk to run make in the current directory, e.g.
converts case i. to case iii.
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)
- mkdir $(BDIR) $(XDIR)
hello: $(SDIR)/hello.c $(XDIR)
$(CC) $(CFLAGS) -o $@ $(SDIR)/$@.c $(LIBS)
mv $@ $(XDIR)
$PVM_ROOT Root path of PVM installation.
$PVM_ARCH PVM architecture name for machine.
$PVM_ROOT/lib/aimk The aimk program
$PVM_ROOT/conf/$PVM_ARCH.def Arch config file