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fix kernel indexing and use correct digest bytes in qpow CUDA kernel

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enable sampler in miner config and increase verify iterations to 2048
This commit is contained in:
rob thijssen
2025-09-14 14:47:44 +03:00
parent 05217dc516
commit 456742e425
2 changed files with 8 additions and 9 deletions
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crates/engine-gpu-cuda/src/kernels/qpow_kernel.cu
+5 -5
View File
@@ -662,7 +662,7 @@ for (uint32_t j = 0; j < iters; ++j) {
uint8_t dist_be[64];
#pragma unroll
for (int i = 0; i < 64; ++i) {
dist_be[i] = target_be_bytes[i] ^ h_le[i];
dist_be[i] = target_be_bytes[i] ^ digest_be[i];
}
// Compare distance <= threshold (lexicographic on big-endian bytes)
@@ -673,11 +673,11 @@ for (uint32_t j = 0; j < iters; ++j) {
#pragma unroll
for (int i = 0; i < 64; ++i) {
C_SAMPLER_Y_BE[i] = y_be[i];
C_SAMPLER_H_BE[i] = h_le[i];
C_SAMPLER_H_BE[i] = digest_be[i];
C_SAMPLER_TARGET_BE[i] = target_be_bytes[i];
C_SAMPLER_THRESH_BE[i] = thresh_be_bytes[i];
}
C_SAMPLER_INDEX = tid * iters + j;
C_SAMPLER_INDEX = tid * iters_per_thread + j;
C_SAMPLER_DECISION = decision ? 1u : 0u;
}
@@ -686,7 +686,7 @@ for (uint32_t j = 0; j < iters; ++j) {
if (atomicCAS(found_flag, 0, 1) == 0) {
// Write linear index for host to reconstruct nonce
if (out_index) {
*out_index = tid * iters + j;
*out_index = tid * iters_per_thread + j;
}
// Record winner thread and iteration for host-side nonce reconstruction
if (out_win_tid) {
@@ -711,7 +711,7 @@ for (uint32_t j = 0; j < iters; ++j) {
if (out_dbg_h_be) {
#pragma unroll
for (int i = 0; i < 64; ++i) {
out_dbg_h_be[i] = h_le[i];
out_dbg_h_be[i] = digest_be[i];
}
}
}
examples/.env/cuda-miner-3060-debug.env
+3 -4
View File
@@ -6,8 +6,7 @@ MINER_CUDA_ITERS=8192
MINER_CUDA_THREADS=4096
MINER_CUDA_BLOCK_DIM=256
MINER_CUDA_BATCHES=32
MINER_CUDA_SAMPLER=0
MINER_CUDA_SAMPLER=1
MINER_CUDA_DESIRED_ITERS=1024
MINER_CUDA_VERIFY=1024
RUST_LOG=info,miner=debug
MINER_CUDA_VERIFY=2048
RUST_LOG=miner=debug