Write an MPI program in C, countprimes which will count the number of prime numb
ID: 3859661 • Letter: W
Question
Write an MPI program in C, countprimes which will count the number of prime numbers in the numbers from 1 to n inclusive where n is a long integer. The value for n which can be set in the program using a constant should be 50,000. Each process will test its share of the cases. Each process should print out any primes that it finds in a readable manner indicating which process found it and the actual prime. The master process should end with printing a total for the count of the number of primes and the total amount of time taken to find all the primes.
Explanation / Answer
Answer:
MIPS Assembly Language Code :
.LC0:
.string "Enter the value of N "
.LC1:
.string " "
main:
push rbp
mov rbp, rsp
sub rsp, 16
mov esi, OFFSET FLAT:.LC0
mov edi, OFFSET FLAT:std::cout
call std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)
lea rax, [rbp-16]
mov rsi, rax
mov edi, OFFSET FLAT:std::cin
call std::basic_istream<char, std::char_traits<char> >::operator>>(int&)
mov DWORD PTR [rbp-4], 2
.L7:
mov eax, DWORD PTR [rbp-16]
cmp DWORD PTR [rbp-4], eax
jg .L2
mov DWORD PTR [rbp-12], 0
mov DWORD PTR [rbp-8], 2
.L5:
mov eax, DWORD PTR [rbp-4]
mov edx, eax
shr edx, 31
add eax, edx
sar eax
cmp eax, DWORD PTR [rbp-8]
jl .L3
mov eax, DWORD PTR [rbp-4]
cdq
idiv DWORD PTR [rbp-8]
mov eax, edx
test eax, eax
jne .L4
mov DWORD PTR [rbp-12], 1
jmp .L3
.L4:
add DWORD PTR [rbp-8], 1
jmp .L5
.L3:
cmp DWORD PTR [rbp-12], 0
jne .L6
mov eax, DWORD PTR [rbp-16]
cmp eax, 1
je .L6
mov eax, DWORD PTR [rbp-4]
mov esi, eax
mov edi, OFFSET FLAT:std::cout
call std::basic_ostream<char, std::char_traits<char> >::operator<<(int)
mov esi, OFFSET FLAT:.LC1
mov rdi, rax
call std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)
.L6:
add DWORD PTR [rbp-4], 1
jmp .L7
.L2:
mov eax, 0
leave
ret
__static_initialization_and_destruction_0(int, int):
push rbp
mov rbp, rsp
sub rsp, 16
mov DWORD PTR [rbp-4], edi
mov DWORD PTR [rbp-8], esi
cmp DWORD PTR [rbp-4], 1
jne .L11
cmp DWORD PTR [rbp-8], 65535
jne .L11
mov edi, OFFSET FLAT:std::__ioinit
call std::ios_base::Init::Init()
mov edx, OFFSET FLAT:__dso_handle
mov esi, OFFSET FLAT:std::__ioinit
mov edi, OFFSET FLAT:std::ios_base::Init::~Init()
call __cxa_atexit
.L11:
nop
leave
ret
_GLOBAL__sub_I_main:
push rbp
mov rbp, rsp
mov esi, 65535
mov edi, 1
call __static_initialization_and_destruction_0(int, int)
pop rbp
ret
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