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Re: [Condor-users] linking problems condor 7.0.1
- Date: Sat, 5 Jul 2008 22:05:41 +0200
- From: Pau <vim.unix@xxxxxxxxxxxxxx>
- Subject: Re: [Condor-users] linking problems condor 7.0.1
SOLVED:
In the Makefile, change
CC = ccache gcc
else
CC = gcc
with
CC = condor_compile ccache gcc
else
CC = condor_compile gcc
And then
make -f Makefile_condor binarywewanttousewithcondor
That's it
Pau
2008/7/5, Pau <vim.unix@xxxxxxxxxxxxxx>:
> Hi,
>
> This is
>
> $ condor -v
> $CondorVersion: 7.0.1 Feb 26 2008 BuildID: 76180 $
> $CondorPlatform: X86_64-LINUX_RHEL3 $
>
> $ cat /etc/issue
> Debian Etch (4.0) \s, kernel \r
> \l @ \n (\m)
>
> $ uname -a
> Linux morgane.aei.mpg.de 2.6.24.2-hexe-smp #1 SMP Fri Feb 15 16:27:39
> CET 2008 x86_64 x86_64 x86_64 GNU/Linux
>
> I am unsuccessfully trying to link an object file to condor:
>
> ----------------------------------------------------------------------------------
> $ gcc-3.4 -Wall -O3 -c scatter_binsingle.c
>
> $ condor_compile gcc scatter_binsingle.o -o scatter_binsingle
> LINKING FOR CONDOR : /usr/bin/ld -L/usr/lib/condor -Bstatic
> --eh-frame-hdr -m elf_x86_64 -dynamic-linker
> /lib64/ld-linux-x86-64.so.2 -o scatter_binsingle /usr/lib/condor/condor_rt0.o
> /usr/lib/gcc/x86_64-linux-gnu/4.1.2/../../../../lib64/crti.o
> /usr/lib/gcc/x86_64-linux-gnu/4.1.2/crtbeginT.o -L/usr/lib/condor
> -L/usr/lib/gcc/x86_64-linux-gnu/4.1.2 -L/usr/lib/gcc/x86_64-linux-gnu/4.1.2
> -L/usr/lib/gcc/x86_64-linux-gnu/4.1.2/../../../../lib64
> -L/lib/../lib64 -L/usr/lib/../lib64 scatter_binsingle.o
> /usr/lib/condor/libcondorsyscall.a /usr/lib/condor/libcondor_z.a
> /usr/lib/condor/libcomp_libstdc++.a
> /usr/lib/condor/libcomp_libgcc.a /usr/lib/condor/libcomp_libgcc_eh.a
> --as-needed --no-as-needed -lcondor_c -lcondor_nss_files
> -lcondor_nss_dns -lcondor_resolv -lcondor_c -lcondor_nss_files
> -lcondor_nss_dns -lcondor_resolv -lcondor_c
> /usr/lib/condor/libcomp_libgcc.a /usr/lib/condor/libcomp_libgcc_eh.a
> --as-needed --no-as-needed
> /usr/lib/gcc/x86_64-linux-gnu/4.1.2/crtend.o
> /usr/lib/gcc/x86_64-linux-gnu/4.1.2/../../../../lib64/crtn.o
> /usr/lib/condor/libcondorsyscall.a(condor_file_agent.o): In function
> `CondorFileAgent::open(char const*, int, int)':
> /home/condor/execute/dir_17236/userdir/src/condor_ckpt/condor_file_agent.C:106:
> warning: the use of `tmpnam' is dangerous,
> better use `mkstemp'
> /usr/lib/condor/libcondorsyscall.a(switches.o): In function `__gets_chk':
> /home/condor/execute/dir_17236/userdir/src/condor_syscall_lib/switches.remap-LINUX.h:460:
> warning: the `gets' function is
> dangerous and should not be used.
> scatter_binsingle.o: In function `calc_units':
> scatter_binsingle.c:(.text+0x90): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xab): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xc7): undefined reference to `sqrt'
> scatter_binsingle.o: In function `main':
> scatter_binsingle.c:(.text+0x13d): undefined reference to `gsl_rng_mt19937'
> scatter_binsingle.c:(.text+0x143): undefined reference to `fb_debug'
> scatter_binsingle.c:(.text+0x228): undefined reference to `fb_malloc_hier'
> scatter_binsingle.c:(.text+0x22d): undefined reference to `gsl_rng_env_setup'
> scatter_binsingle.c:(.text+0x235): undefined reference to `gsl_rng_alloc'
> scatter_binsingle.c:(.text+0x245): undefined reference to `gsl_rng_set'
> scatter_binsingle.c:(.text+0x2a5): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x2d0): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x2fb): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x332): undefined reference to `fb_init_hier'
> scatter_binsingle.c:(.text+0x614): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x630): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x691): undefined reference to `fb_normalize'
> scatter_binsingle.c:(.text+0x699): undefined reference to `gsl_rng_uniform'
> scatter_binsingle.c:(.text+0x73e): undefined reference to `pow'
> scatter_binsingle.c:(.text+0x798): undefined reference to `fb_init_scattering'
> scatter_binsingle.c:(.text+0x7bb): undefined reference to `fb_randorient'
> scatter_binsingle.c:(.text+0x7e4): undefined reference to `fb_downsync'
> scatter_binsingle.c:(.text+0x80d): undefined reference to `fb_upsync'
> scatter_binsingle.c:(.text+0x892): undefined reference to `fewbody'
> scatter_binsingle.c:(.text+0x8ec): undefined reference to `fb_sprint_hier_hr'
> scatter_binsingle.c:(.text+0x949): undefined reference to `fb_sprint_hier'
> scatter_binsingle.c:(.text+0xa10): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xa79): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xaa1): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xad2): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xb0f): undefined reference to `gsl_rng_free'
> scatter_binsingle.c:(.text+0xb61): undefined reference to `fb_free_hier'
> scatter_binsingle.c:(.text+0xbbb): undefined reference to `fb_n_hier'
> scatter_binsingle.c:(.text+0xbe7): undefined reference to `fb_mod'
> scatter_binsingle.c:(.text+0xc19): undefined reference to `fb_mod'
> scatter_binsingle.c:(.text+0xecf): undefined reference to `sqrt'
> scatter_binsingle.c:(.text+0xedd): undefined reference to `sqrt'
> scatter_binsingle.c:(.text+0xeeb): undefined reference to `sqrt'
> collect2: ld returned 1 exit status
> ----------------------------------------------------------------------------------
>
> It seems that it doesn't find the gsl?
>
> The reason for using gcc-3.4 is because I am trying different things
> because I have seen that there were problems in older versions of condor; e.g.
>
> https://lists.cs.wisc.edu/archive/condor-users/2007-June/msg00087.shtml
>
> but using gcc-3.3 or gcc-4.1 yields the same result
>
> Here I "force" gcc to be gcc-3.4:
>
> ------------------------------------------------------------------------------------
> $ alias gcc='gcc-3.4'
>
> $ gcc -v
> Reading specs from /usr/lib/gcc/x86_64-linux-gnu/3.4.6/specs
> Configured with: ../src/configure -v
> --enable-languages=c,c++,f77,pascal --prefix=/usr
> --libexecdir=/usr/lib --with-gxx-include-dir=/usr/include/c++/3.4
> --enable-shared --with-system-zlib --enable-nls
> --without-included-gettext --program-suffix=-3.4 --enable-__cxa_atexit
> --enable-clocale=gnu --enable-libstdcxx-debug x86_64-linux-gnu
> Thread model: posix
> gcc version 3.4.6 (Debian 3.4.6-5)
>
> $ gcc -Wall -O3 -c scatter_binsingle.c
>
> $ condor_compile gcc scatter_binsingle.o -o scatter_binsingle
> LINKING FOR CONDOR : /usr/bin/ld -L/usr/lib/condor -Bstatic
> --eh-frame-hdr -m elf_x86_64 -dynamic-linker
> /lib64/ld-linux-x86-64.so.2 -o scatter_binsingle
> /usr/lib/condor/condor_rt0.o
> /usr/lib/gcc/x86_64-linux-gnu/4.1.2/../../../../lib64/crti.o
> /usr/lib/gcc/x86_64-linux-gnu/4.1.2/crtbeginT.o -L/usr/lib/condor
> -L/usr/lib/gcc/x86_64-linux-gnu/4.1.2
> -L/usr/lib/gcc/x86_64-linux-gnu/4.1.2
> -L/usr/lib/gcc/x86_64-linux-gnu/4.1.2/../../../../lib64
> -L/lib/../lib64 -L/usr/lib/../lib64 scatter_binsingle.o
> /usr/lib/condor/libcondorsyscall.a /usr/lib/condor/libcondor_z.a
> /usr/lib/condor/libcomp_libstdc++.a /usr/lib/condor/libcomp_libgcc.a
> /usr/lib/condor/libcomp_libgcc_eh.a --as-needed --no-as-needed
> -lcondor_c -lcondor_nss_files -lcondor_nss_dns -lcondor_resolv
> -lcondor_c -lcondor_nss_files -lcondor_nss_dns -lcondor_resolv
> -lcondor_c /usr/lib/condor/libcomp_libgcc.a
> /usr/lib/condor/libcomp_libgcc_eh.a --as-needed --no-as-needed
> /usr/lib/gcc/x86_64-linux-gnu/4.1.2/crtend.o
> /usr/lib/gcc/x86_64-linux-gnu/4.1.2/../../../../lib64/crtn.o
> /usr/lib/condor/libcondorsyscall.a(condor_file_agent.o): In function
> `CondorFileAgent::open(char const*, int, int)':
> /home/condor/execute/dir_17236/userdir/src/condor_ckpt/condor_file_agent.C:106:
> warning: the use of `tmpnam' is dangerous, better use `mkstemp'
> /usr/lib/condor/libcondorsyscall.a(switches.o): In function `__gets_chk':
> /home/condor/execute/dir_17236/userdir/src/condor_syscall_lib/switches.remap-LINUX.h:460:
> warning: the `gets' function is dangerous and should not be used.
> scatter_binsingle.o: In function `calc_units':
> scatter_binsingle.c:(.text+0x90): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xab): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xc7): undefined reference to `sqrt'
> scatter_binsingle.o: In function `main':
> scatter_binsingle.c:(.text+0x13d): undefined reference to `gsl_rng_mt19937'
> scatter_binsingle.c:(.text+0x143): undefined reference to `fb_debug'
> scatter_binsingle.c:(.text+0x228): undefined reference to `fb_malloc_hier'
> scatter_binsingle.c:(.text+0x22d): undefined reference to `gsl_rng_env_setup'
> scatter_binsingle.c:(.text+0x235): undefined reference to `gsl_rng_alloc'
> scatter_binsingle.c:(.text+0x245): undefined reference to `gsl_rng_set'
> scatter_binsingle.c:(.text+0x2a5): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x2d0): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x2fb): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x332): undefined reference to `fb_init_hier'
> scatter_binsingle.c:(.text+0x614): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x630): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0x691): undefined reference to `fb_normalize'
> scatter_binsingle.c:(.text+0x699): undefined reference to `gsl_rng_uniform'
> scatter_binsingle.c:(.text+0x73e): undefined reference to `pow'
> scatter_binsingle.c:(.text+0x798): undefined reference to `fb_init_scattering'
> scatter_binsingle.c:(.text+0x7bb): undefined reference to `fb_randorient'
> scatter_binsingle.c:(.text+0x7e4): undefined reference to `fb_downsync'
> scatter_binsingle.c:(.text+0x80d): undefined reference to `fb_upsync'
> scatter_binsingle.c:(.text+0x892): undefined reference to `fewbody'
> scatter_binsingle.c:(.text+0x8ec): undefined reference to `fb_sprint_hier_hr'
> scatter_binsingle.c:(.text+0x949): undefined reference to `fb_sprint_hier'
> scatter_binsingle.c:(.text+0xa10): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xa79): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xaa1): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xad2): undefined reference to `fb_sqr'
> scatter_binsingle.c:(.text+0xb0f): undefined reference to `gsl_rng_free'
> scatter_binsingle.c:(.text+0xb61): undefined reference to `fb_free_hier'
> scatter_binsingle.c:(.text+0xbbb): undefined reference to `fb_n_hier'
> scatter_binsingle.c:(.text+0xbe7): undefined reference to `fb_mod'
> scatter_binsingle.c:(.text+0xc19): undefined reference to `fb_mod'
> scatter_binsingle.c:(.text+0xecf): undefined reference to `sqrt'
> scatter_binsingle.c:(.text+0xedd): undefined reference to `sqrt'
> scatter_binsingle.c:(.text+0xeeb): undefined reference to `sqrt'
> collect2: ld returned 1 exit status
> ----------------------------------------------------------------------------------------
>
> Just to be sure:
>
> ------------------------------------------------------------------------------------------
> $ cat scatter_binsingle.c
>
> /* -*- linux-c -*- */
> /* exchange_binsingle.c
>
> Copyright (C) 2002-2004 John M. Fregeau
>
> This program is free software; you can redistribute it and/or modify
> it under the terms of the GNU General Public License as published by
> the Free Software Foundation; either version 2 of the License, or
> (at your option) any later version.
>
> This program is distributed in the hope that it will be useful,
> but WITHOUT ANY WARRANTY; without even the implied warranty of
> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> GNU General Public License for more details.
>
> You should have received a copy of the GNU General Public License
> along with this program; if not, write to the Free Software
> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
> */
>
> #include <stdio.h>
> #include <stddef.h>
> #include <stdlib.h>
> #include <string.h>
> #include <math.h>
> #include <time.h>
> #include <getopt.h>
> #include <gsl/gsl_rng.h>
> #include "fewbody.h"
>
> /* calculate the units used; here the unit of velocity is the critical
> velocity, the unit
> of length is the binary's semimajor axis, G=1, and the other units
> are derived */
> int calc_units(fb_obj_t *obj[2], fb_units_t *units)
> {
> units->v = sqrt(FB_CONST_G*(obj[0]->m + obj[1]->m)/(obj[0]->m * obj[1]->m) * \
> (obj[1]->obj[0]->m * obj[1]->obj[1]->m / obj[1]->a));
> units->l = obj[1]->a;
> units->t = units->l / units->v;
> units->m = units->l * fb_sqr(units->v) / FB_CONST_G;
> units->E = units->m * fb_sqr(units->v);
>
> return(0);
> }
>
> /* the main attraction */
> int main(int argc, char *argv[])
> {
> int i, j, expt=-1, ngood=0, nbad=0, ncoll=0, bid, sid;
> unsigned long int seed;
> double m0, m10, m11, r0, r10, r11, a1, e1;
> double rtid, vinf, b, m1, t;
> double bmax;
> FILE *ofp;
> /* these are fewbody data types */
> fb_hier_t hier;
> fb_input_t input;
> fb_ret_t retval;
> fb_units_t units;
> char string1[1024], string2[1024];
> /* you need the random number generator for randomizing the binary's
> phase and orientation */
> gsl_rng *rng;
> const gsl_rng_type *rng_type=gsl_rng_mt19937;
>
> /* set parameters */
> input.ks = 0; /* KS regularization flag; it must be off to perform
> physical collisions properly */
> input.tstop = 1.0e9; /* maximum stopping time */
> input.Dflag = 0; /* print dynamical data to stdout? */
> input.dt = 1.0; /* approximate output interval */
> input.tcpustop = 600.0; /* give up after this many seconds of cpu time */
> input.absacc = 1.0e-9; /* integrator's absolute accuracy */
> input.relacc = 1.0e-9; /* integrator's relative accuracy */
> input.ncount = 500; /* number of integration steps between
> classification hierarchies */
> input.tidaltol = 1.0e-5; /* tidal tolerance: this is what most
> affects energy conservation */
> /* DEBUG: set speed tolerance here */
> // input.speedtol = 5.0e-02;
> input.speedtol = 1.0e+10;
> /* DEBUG */
> input.fexp = 3.0; /* expansion factor of merger products; 3 is a good
> value for main sequence stars */
> /* DEBUG: set PN terms here */
> input.PN1 = 0;
> input.PN2 = 0;
> input.PN25 = 0;
> input.PN3 = 0;
> input.PN35 = 0;
> /* DEBUG */
> input.firstlogentry[0] = '\0'; /* you can store log info in the
> output stream */
> seed = 92220UL; /* RNG seed */
> fb_debug = 0; /* global variable (the only one) controlling debug
> information */
>
> /* malloc hier */
> hier.nstarinit = 3;
> fb_malloc_hier(&hier);
>
> /* initialize GSL rng */
> gsl_rng_env_setup();
> rng = gsl_rng_alloc(rng_type);
> gsl_rng_set(rng, seed);
>
> /* open output file and write header */
> /* DEBUG: set file name here */
> ofp = fopen("scatter_params.dat", "w");
> /* DEBUG */
> fprintf(ofp, "#1:v_bin[km/s] #2:v_single[km/s] #3:a[AU] #4:e
> #5:m1[MSUN] #6:m2[MSUN] #7:x1[cm] #8:y1[cm] #9:z1[cm] #10:vx1[km/s]
> #11:vy1[km/s] #12:vz1[km/s] #13:x2[cm] #14:y2[cm] #15:z2[cm]
> #16:vx2[km/s] #17:vy2[km/s] #18:vz2[km/s]\n");
>
> /* loop through experiments */
> for (i=0; i<2000000; i++) {
> expt++;
>
> /* DEBUG: set system parameters here (in CGS) */
> m0 = 10.0 * FB_CONST_MSUN;
> m10 = 10.0 * FB_CONST_MSUN;
> m11 = 10.0 * FB_CONST_MSUN;
> r0 = FB_REFF_BH * FB_CONST_G * m0 / fb_sqr(FB_CONST_C);
> r10 = FB_REFF_BH * FB_CONST_G * m10 / fb_sqr(FB_CONST_C);
> r11 = FB_REFF_BH * FB_CONST_G * m11 / fb_sqr(FB_CONST_C);
> a1 = 100.0 * FB_CONST_AU;
> e1 = 0.0;
> /* DEBUG */
>
> /* flatten hier */
> t = 0.0;
> hier.nstar = 3;
> fb_init_hier(&hier);
>
> /* create binary */
> hier.hier[hier.hi[2]+0].obj[0] = &(hier.hier[hier.hi[1]+1]);
> hier.hier[hier.hi[2]+0].obj[1] = &(hier.hier[hier.hi[1]+2]);
> hier.hier[hier.hi[2]+0].t = t;
>
> /* give the objects some properties */
> for (j=0; j<hier.nstar; j++) {
> hier.hier[hier.hi[1]+j].ncoll = 1;
> hier.hier[hier.hi[1]+j].id[0] = j;
> snprintf(hier.hier[hier.hi[1]+j].idstring, FB_MAX_STRING_LENGTH, "%d", j);
> hier.hier[hier.hi[1]+j].n = 1;
> hier.hier[hier.hi[1]+j].obj[0] = NULL;
> hier.hier[hier.hi[1]+j].obj[1] = NULL;
> hier.hier[hier.hi[1]+j].Eint = 0.0;
> hier.hier[hier.hi[1]+j].Lint[0] = 0.0;
> hier.hier[hier.hi[1]+j].Lint[1] = 0.0;
> hier.hier[hier.hi[1]+j].Lint[2] = 0.0;
> }
>
> /* set radii */
> hier.hier[hier.hi[1]+0].R = r0;
> hier.hier[hier.hi[1]+1].R = r10;
> hier.hier[hier.hi[1]+2].R = r11;
>
> /* masses */
> hier.hier[hier.hi[1]+0].m = m0;
> hier.hier[hier.hi[1]+1].m = m10;
> hier.hier[hier.hi[1]+2].m = m11;
>
> hier.hier[hier.hi[2]+0].m = m10 + m11;
>
> /* orbital parameters */
> hier.hier[hier.hi[2]+0].a = a1;
> hier.hier[hier.hi[2]+0].e = e1;
>
> /* make obj's point to the correct nodes in the hier */
> hier.obj[0] = &(hier.hier[hier.hi[1]+0]);
> hier.obj[1] = &(hier.hier[hier.hi[2]+0]);
> hier.obj[2] = NULL;
>
> /* get the units and normalize */
> calc_units(hier.obj, &units);
> fb_normalize(&hier, units);
>
> /* DEBUG: set v_infinity and maximum impact parameter here */
> /* set v_inf to ~20 km/s, a reasonable value for a BH core */
> /* vinf = 20.0e5 / units.v; */
> /* set v_inf to something less than 1 to get a resonant encounter */
> vinf = 0.2;
> /* maximum impact parameter, from Hut & Bahcall (1983) (x2 to make
> sure we catch everything interesting) */
> bmax = 1.0 * (4.0/vinf + 0.6);
> /* DEBUG */
> /* sample impact parameter uniformly in area */
> b = sqrt(gsl_rng_uniform(rng)) * bmax;
>
> /* analytically move objects along hyperbolic path */
> m0 = hier.obj[0]->m;
> m1 = hier.obj[1]->m;
> a1 = hier.obj[1]->a;
> e1 = hier.obj[1]->e;
> /* rtid is the radius at which the binary's tidal perturbation
> (F_tid,max/F_rel,min) is equal
> to the tidal tolerance; we want to start the integration at this radius */
> rtid = pow(2.0*(m0+m1)/(m1*input.tidaltol), 1.0/3.0) * a1 * (1.0+e1);
> fb_init_scattering(hier.obj, vinf, b, rtid);
>
> /* randomly orient binary */
> fb_randorient(&(hier.hier[hier.hi[2]+0]), rng);
> /* use parent node's properties to set properties of child nodes*/
> fb_downsync(&(hier.hier[hier.hi[2]+0]), t);
> /* determine parent node's properties from child nodes
> (this step is not necessary, and was included only as a test) */
> fb_upsync(&(hier.hier[hier.hi[2]+0]), t);
>
> /* call fewbody! */
> retval = fewbody(input, units, &hier, &t, rng);
>
> /* print to screen */
> fprintf(stdout, "expt=%d retval=%d tcpu=%g DeltaEfrac=%g
> DeltaLfrac=%g vinf=%g bmax=%g b=%g %s (%s)\n",
> expt, retval.retval, retval.tcpu, retval.DeltaEfrac,
> retval.DeltaLfrac, vinf, bmax, b,
> fb_sprint_hier(hier, string1), fb_sprint_hier_hr(hier, string2));
>
> /* print to special data file if we have a useable exchange, i.e.,
> the return value is 1, so the
> calculation finished, and energy and angular momentum are
> conserved reasonably */
> if (retval.retval == 1) {
> ngood++;
> /* no collisions */
> if (hier.nstar == 3) {
> /* exchange or preservation */
> if (hier.nobj == 2) {
> /* test to see which object is the binary */
> if (fb_n_hier(hier.obj[0]) == 2) {
> bid = 0;
> sid = 1;
> } else {
> sid = 0;
> bid = 1;
> }
> fprintf(ofp, "%g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g %g\n",
> fb_mod(hier.obj[bid]->v) * units.v / 1.0e5,
> fb_mod(hier.obj[sid]->v) * units.v / 1.0e5,
> hier.obj[bid]->a * units.l / FB_CONST_AU,
> hier.obj[bid]->e,
> hier.obj[bid]->obj[0]->m * units.m / FB_CONST_MSUN,
> hier.obj[bid]->obj[1]->m * units.m / FB_CONST_MSUN,
> (hier.obj[bid]->obj[0]->x[0] - hier.obj[bid]->x[0]) * units.l,
> (hier.obj[bid]->obj[0]->x[1] - hier.obj[bid]->x[1]) * units.l,
> (hier.obj[bid]->obj[0]->x[2] - hier.obj[bid]->x[2]) * units.l,
> (hier.obj[bid]->obj[0]->v[0] - hier.obj[bid]->v[0]) * units.v / 1.0e5,
> (hier.obj[bid]->obj[0]->v[1] - hier.obj[bid]->v[1]) * units.v / 1.0e5,
> (hier.obj[bid]->obj[0]->v[2] - hier.obj[bid]->v[2]) * units.v / 1.0e5,
> (hier.obj[bid]->obj[1]->x[0] - hier.obj[bid]->x[0]) * units.l,
> (hier.obj[bid]->obj[1]->x[1] - hier.obj[bid]->x[1]) * units.l,
> (hier.obj[bid]->obj[1]->x[2] - hier.obj[bid]->x[2]) * units.l,
> (hier.obj[bid]->obj[1]->v[0] - hier.obj[bid]->v[0]) * units.v / 1.0e5,
> (hier.obj[bid]->obj[1]->v[1] - hier.obj[bid]->v[1]) * units.v / 1.0e5,
> (hier.obj[bid]->obj[1]->v[2] - hier.obj[bid]->v[2]) * units.v / 1.0e5);
> fflush(ofp);
> }
> } else { /* hier.nstar != 3, so there must have been a physical collision */
> ncoll++;
> }
> } else { /* calculation didn't finish, or energy or ang mom wasn't
> conserved */
> nbad++;
> }
>
> /* incrementally update cross sections on screen */
> fprintf(stdout, "n=%d ngood=%d nbad=%d ncoll=%d\n",
> ngood+nbad, ngood, nbad, ncoll);
> fprintf(stdout, "sigma_coll=%g+/-%g\n",
> fb_sqr(bmax)*((double) ncoll)/((double) ngood) * fb_sqr(vinf),
> fb_sqr(bmax)*sqrt((double) ncoll)/((double) ngood) * fb_sqr(vinf));
> }
>
> /* free stuff */
> gsl_rng_free(rng);
> fb_free_hier(hier);
>
> /* close output file */
> fclose(ofp);
>
> /* done */
> return(0);
> }
> ------------------------------------------------------------------------------------------
>