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46 lines
1.2 KiB
Perl
46 lines
1.2 KiB
Perl
if not terralib.cudacompile then
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print("CUDA not enabled, not performing test...")
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return
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end
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local tid = cudalib.nvvm_read_ptx_sreg_tid_x--terralib.intrinsic("llvm.nvvm.read.ptx.sreg.tid.x",{} -> int)
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local ntid = cudalib.nvvm_read_ptx_sreg_ntid_x -- terralib.intrinsic("llvm.nvvm.read.ptx.sreg.ntid.x",{} -> int)
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struct A {
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a : int
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b : int
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c : int[2]
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}
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terra foo(result : &float,a : A, c : int, d : int[2])
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var t = tid()
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result[t] = t + a.a + a.b + c + a.c[0] + a.c[1] + d[0] + d[1]
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end
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terralib.includepath = terralib.includepath..";/usr/local/cuda/include"
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local C = terralib.includecstring [[
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#include "cuda_runtime.h"
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#include <stdlib.h>
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#include <stdio.h>
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]]
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local R = terralib.cudacompile({ bar = foo })
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terra doit(N : int)
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var data : &float
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C.cudaMalloc([&&opaque](&data),sizeof(float)*N)
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var launch = terralib.CUDAParams { 1,1,1, N,1,1, 0, nil }
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R.bar(&launch,data, A { 1,2, array(3,4) },5,array(6,7))
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var results : &float = [&float](C.malloc(sizeof(float)*N))
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C.cudaMemcpy(results,data,sizeof(float)*N,2)
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var result = 0.f
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for i = 0,N do
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result = result + results[i]
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end
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return result
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end
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local test = require("test")
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local N = 16
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local expected = (N - 1)*N/2 + N*(1 + 2 + 3 + 4 + 5 + 6 + 7)
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test.eq(doit(N),expected)
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