我的部分 FORTRAN 代码的解除分配和分配方面存在问题。特别是,我认为这个问题与在网上搜索我的错误消息时的内存分配有关。错误消息涉及无效指针,但是,我没有在我的程序中使用任何指针
在完成我的 f 循环的第 2 次迭代后(见下文),程序崩溃了,或者说大部分时间它崩溃了,有时它只是冻结了。我相信这是错误所在。随着程序运行到这一点。
我有未显示的子程序,但由于它们适用于其他模拟组合,我有理由相信它们不是问题。我在程序中的其他地方使用 deallocate 和 allocate (成功),所以我很惊讶它在这里不起作用。
为了便于阅读,我只展示了程序的一部分。特别是,我删除了对我编写的子例程的调用。我希望我已经为你们程序员提供了足够的信息来帮助我找出问题所在。如果不是,请指定您想要的其他信息,我很乐意遵守。我已经使用各种编译器选项编译了该程序,并修复了一些错误并删除了任何警告。然而,此时编译器选项并没有给我更多信息。
allocate(poffvect(1:6))
allocate(phi1out(1:1))
allocate(phi2out(1:1))
allocate(phi1outs1(1:1))
allocate(phi2outs1(1:1))
dummy allocation
allocate(phi1outind(1:1))
allocate(phi2outind(1:1))
allocate(phi1outinds1(1:1))
allocate(phi2outinds1(1:1))
do e = 1, 6
print *,"e", e
do f = 1, 3
print *,"f", f, iteratst1(f), trim(filenumcharimp)
deallocate(phi1outinds1, STAT = AllocateStatus)
if (AllocateStatus /= 0) stop "Error during deallocation of phi1outinds1"
print *, "Allocatestatus of phi1outinds1 is", AllocateStatus
deallocate(phi2outinds1, STAT = AllocateStatus)
print *, "DeAllocatestatus of phi1outinds2 is", AllocateStatus
if (AllocateStatus /= 0) stop "Error during deallocation of phi2outinds1"
print *, "we deallocate f loop ok", iteratst1(f)
allocate(phi1outinds1(1:iteratst1(f)), STAT = AllocateStatus)
if (AllocateStatus /= 0) stop "Error during allocation of phi1outinds1"
allocate(phi2outinds1(1:iteratst1(f)), STAT = AllocateStatus)
if (AllocateStatus /= 0) stop "Error during deallocation of phi1outinds1"
end do
end do
编译器选项
ifort -free -check -traceback -o adatptmultistage1new.out adatptmultistage1new.f90
输出
e 1
f 1 5000 43
DeAllocatestatus of phi1outinds1 is 0
DeAllocatestatus of phi1outinds2 is 0
we deallocate f loop ok 5000
f loop done 1
f 2 10000 43
Allocatestatus of phi1outinds1 is 0
DeAllocatestatus of phi1outinds2 is 0
we deallocate f loop ok 10000
f loop done 2
f 3 15000 43
Allocatestatus of phi1outinds1 is 0
错误信息
*** glibc detected *** ./adatptmultistage1new.out: munmap_chunk(): invalid pointer: 0x0000000000d3ddd0 ***
======= Backtrace: =========
/lib/libc.so.6(+0x77806)[0x7f5863b7b806]
. /adatptmultistage1new.out[0x43247c]
. /adatptmultistage1new.out[0x404368]
./adatptmultistage1new.out[0x4031ec]
/lib/libc.so.6(__libc_start_main+0xfd)[0x7f5863b22c4d]
. /adatptmultistage1new.out[0x4030e9]
======= Memory map: ========
00400000-004d4000 r-xp 00000000 08:03 9642201
/home/jgold/smwcv/error_infect/test/surfaces/multistage/adaptonly/adatptmultistage1new.out
006d4000-006dc000 rw-p 000d4000 08:03 9642201
[为简洁起见,未显示其余错误消息]
7fffb004d000-7fffb00bc000 rw-p 00000000 00:00 0 [stack]
7fffb01d7000-7fffb01d8000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
Aborted