mirror of
https://github.com/KevinMidboe/linguist.git
synced 2025-10-29 09:40:21 +00:00
49 lines
1.3 KiB
Perl
49 lines
1.3 KiB
Perl
if not terralib.cudacompile then
|
|
print("CUDA not enabled, not performing test...")
|
|
return
|
|
end
|
|
|
|
local tid = cudalib.nvvm_read_ptx_sreg_tid_x--terralib.intrinsic("llvm.nvvm.read.ptx.sreg.tid.x",{} -> int)
|
|
local ntid = cudalib.nvvm_read_ptx_sreg_ntid_x -- terralib.intrinsic("llvm.nvvm.read.ptx.sreg.ntid.x",{} -> int)
|
|
|
|
|
|
theone = global(0)
|
|
|
|
theconst = cudalib.constantmemory(int,1)
|
|
|
|
terra foo(result : &float)
|
|
result[tid()] = tid() + theone + theconst[0]
|
|
end
|
|
|
|
terralib.includepath = terralib.includepath..";/usr/local/cuda/include"
|
|
|
|
local C = terralib.includecstring [[
|
|
#include "cuda_runtime.h"
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
]]
|
|
local R = terralib.cudacompile({ foo = foo, aone = theone, theconst = theconst })
|
|
|
|
terra doit(N : int)
|
|
var data : &float
|
|
C.cudaMalloc([&&opaque](&data),sizeof(float)*N)
|
|
var one = 1
|
|
var two = 2
|
|
C.cudaMemcpy(R.aone,&one,sizeof(int),1)
|
|
C.cudaMemcpy(R.theconst,&two,sizeof(int),1)
|
|
var launch = terralib.CUDAParams { 1,1,1, N,1,1, 0, nil }
|
|
R.foo(&launch,data)
|
|
var results : &float = [&float](C.malloc(sizeof(float)*N))
|
|
C.cudaMemcpy(results,data,sizeof(float)*N,2)
|
|
var result = 0.f
|
|
for i = 0,N do
|
|
result = result + results[i]
|
|
end
|
|
return result
|
|
end
|
|
|
|
local test = require("test")
|
|
local N = 16
|
|
local expected = (N - 1)*N/2 + 3*N
|
|
test.eq(doit(N),expected)
|