GhostRider hotfixes

- Added average hashrate display
- Fixed the number of threads shown at startup
- Fixed `--threads` or `-t` command line option (but `--cpu-max-threads-hint` is recommended to use)

src/backend/cpu/CpuBackend.cpp

@@ -88,6 +88,7 @@ public:
     {
         if (ready) {
             m_started++;
+            m_totalStarted += worker->threads();
 
             if (m_workersMemory.insert(worker->memory()).second) {
                 m_hugePages += worker->memory()->hugePages();
@@ -112,7 +113,7 @@ public:
         LOG_INFO("%s" GREEN_BOLD(" READY") " threads %s%zu/%zu (%zu)" CLEAR " huge pages %s%1.0f%% %zu/%zu" CLEAR " memory " CYAN_BOLD("%zu KB") BLACK_BOLD(" (%" PRIu64 " ms)"),
                  Tags::cpu(),
                  m_errors == 0 ? CYAN_BOLD_S : YELLOW_BOLD_S,
-                 m_started, m_threads, m_ways,
+                 m_totalStarted, std::max(m_totalStarted, m_threads), m_ways,
                  (m_hugePages.isFullyAllocated() ? GREEN_BOLD_S : (m_hugePages.allocated == 0 ? RED_BOLD_S : YELLOW_BOLD_S)),
                  m_hugePages.percent(),
                  m_hugePages.allocated, m_hugePages.total,
@@ -127,6 +128,7 @@ private:
     size_t m_errors       = 0;
     size_t m_memory       = 0;
     size_t m_started      = 0;
+    size_t m_totalStarted = 0;
     size_t m_threads      = 0;
     size_t m_ways         = 0;
     uint64_t m_ts         = 0;

src/backend/cpu/CpuLaunchData.cpp

@@ -44,7 +44,7 @@ xmrig::CpuLaunchData::CpuLaunchData(const Miner *miner, const Algorithm &algorit
     affinity(thread.affinity()),
     miner(miner),
     threads(threads),
-    intensity(std::min<uint32_t>(thread.intensity(), algorithm.maxIntensity())),
+    intensity(std::max<uint32_t>(std::min<uint32_t>(thread.intensity(), algorithm.maxIntensity()), algorithm.minIntensity())),
     affinities(affinities)
 {
 }

src/backend/cpu/CpuWorker.h

@@ -52,6 +52,15 @@ public:
     CpuWorker(size_t id, const CpuLaunchData &data);
     ~CpuWorker() override;
 
+    size_t threads() const override
+    {
+#       ifdef XMRIG_ALGO_GHOSTRIDER
+        return m_ghHelper ? 2 : 1;
+#       else
+        return 1;
+#       endif
+    }
+
 protected:
     bool selfTest() override;
     void hashrateData(uint64_t &hashCount, uint64_t &timeStamp, uint64_t &rawHashes) const override;